whimsical clouds

We also know that powerful Reiatsu tends to make weaker souls fall ill (from Hitsugaya’s backstory), which is why I headcanon Aizen’s biological mother perishing during, or shortly after, giving birth to him.

This is important because I think the lack of a mother figure had a great influence on Aizen’s psyche. His inability, or reluctance, to form bonds with others could be a reflection of the absence of a mother-child bond. Female characters in Bleach are often associated with themes of empathy, heart, and emotional connection (for example Orihime and her theme of “becoming the rain,” Rukia in relation to Kaien, or Masaki being the emotional center of the Kurosaki family). The lack of these traits in Aizen could suggest a missing motherly/feminine influence. This is also supported by the lack of any close relationship between Aizen and female characters.

The death of his mother could — but didn’t necessarily have to — cause some sort of social stigma around Aizen as the one who “killed” his own mother. Regardless of whether that was true or not, I don’t think Aizen’s upbringing was tragic or traumatic, nor do I think he grew up in poverty. On the contrary, I believe that whoever raised him provided a reasonably comfortable standard of living. Why? Because a hostile environment (like the one in Zaraki’s backstory) and poor living conditions would more likely produce survival instincts than a thirst for knowledge in a child.

I imagine Aizen learned how to read and write early on, and that someone taught him proper manners — things that sparked his interest in gaining even more knowledge. If his caretakers themselves weren’t educated, they likely wouldn’t have provided this kind of upbringing.

One personal headcanon I especially like is that Aizen grew up near a teahouse in one of the districts, where a friend of his biological mother took care of him. By observing geisha at work, he learned about music, poetry, the art of conversation, and seduction — skills that would later become useful in his game of pretend.

I can also imagine several other possible circumstances surrounding Aizen’s upbringing, especially those connected to his strong Reiatsu. We know that Reiatsu lures hungry Hollows, so this could have been a source of misfortune for the people around him. We also know that Aizen resents dependence. Perhaps this originated from people — or other children — relying on him from a very young age because of either his intellect or his Reiatsu potential, instead of acting independently. This could have created both a burden of responsibility for someone so young and a sense of superiority. Both traits would be important for his later actions.

As a child, I headcanon Aizen as very introverted, quiet, observant — and a little odd. Not because he was traumatized, but because he was still in the process of learning through observation and experimentation: how to fit into society, how to behave in order to achieve the desired reaction from others, and how not to accidentally say something too harsh or too factual and upset people because of it.

--

After a lengthy reconnaissance mission in the World of the Living, you decide to wind down in a rural area in the Rukongai district. It was a pleasant place—hills of grass stretched out before you, soft and vibrant, along with occasional homes dotting the landscape. However, you were quite shaken up by Aizen's appearance those few days ago, and could not stop questioning his true motives. Not to mention, he was still interfering with your personal life like a weirdo stalker.

Did he really want you back, or was he toying with you? For someone so prideful and ruthless, he'd never blatantly admit to feeling anything towards anyone. Still, you couldn't ignore the possibility that he wasn't telling you everything. Or rather, it was that you didn't allow him to.

Puffy, gray clouds drag themselves across the bright sky, acting as curtains from the sun. What a shame, you thought. It seemed like the rain was coming before you could even relax. When you decide to turn around, however, a tall figure obstructs your path.

"[Name]."

Your body involuntary jumps as a trail of incoherent noises bubble from you, "What the hell are you doing here, Aizen? I thought I told you to leave me alone!"

"You never specified for how long."

"Don't be such a smart-ass. Context clues exist for a reason."

"By that logic, those same context clues suggest you still want me."

Of course he noticed that.

"Has being in Muken turned you into a madman? You're delusional."

"Yes," his breath shudders, "yes, I've gone mad. Anyone would lose their senses when deprived of life's necessities."

"Except you're not just 'anyone'," you scoff, feigning indifference at the meaning behind his words. "It's not like you need anything if you already have the Hogyoku."

"You'd be surprised. No matter how much we possess, it's in our nature to desire more."

Aizen takes a few steps towards you. Your stomach lurches at his words and the way his mahogany eyes hold yours hostage, as if forcing you to witness an unbearable truth.

Knowing him, he was a persistent bastard who would keep pestering you no matter how many times you rejected him. Letting out a trembling sigh, you ask him a question you unfortunately know the answer to, "What do you want?"

He doesn't respond immediately. For a moment, he's frozen in place as if he were a flower at a cliff's edge—there was no going back once he drifted beyond it.

"I want you," he softly exhales, his breath fogging the cold air. "I need you."

As if on command, droplets of water begin to shower you both. There's an irritating way your mind and heart falters at his confession. He looked so miserable, so starved—and your presence only fueled the inferno in his heart despite the rain.

"I can't believe that," you weakly respond, your voice cracking. "Why do you want me now? Why did you leave me then?"

"I convinced myself that you were too weak to stand with me. That any compassion towards you would only impede my ambitions. When, in reality, I..." he trails off for a few seconds, "...I was afraid of losing you. I never wanted to admit that until now."

A raw silence subsumes his heavy voice. You try to wrap your head around this information. Aizen, of all people, was afraid of losing someone? It was inconceivable. Even if he was a man who purged any weakness, you couldn't believe you were one of them. Though, certainly, if you had betrayed the Soul Society with him and survived, the Sokyoku would only await. So, that would mean...

He protected you?

Despite feeling shocked at his sudden change in character, your wounded heart was still reluctant to rekindle a bond with him.

"Aizen, you need to forget about me. Please."

"Forget? You speak as if the memory of you is merely an afterthought," he says, paying no mind to the vulnerability of his words. "I simply cannot forget you. If such an act were so simple, I'm certain I would have died by now. That is because you are the only one who can resurrect me with the breath of life—not this lackluster gemstone, no."

"...That's just a damn lie, isn't it?"

"It is anything but a lie. It is a fact. It was always a fact." His face is wrought with desperation, fervent eyes flickering to every part of your form as if the rain would wash you away, "You are the source of my hope and despair, my earthly undoing. Each step towards the heavens had only reminded me of how inextricably and hopelessly bound to you I was. There isn't a moment where I don't want you by my side."

Slowly, his hand reaches out to cup your face, thumb lightly grazing your cheekbone, "I say this not as a god, nor as a king, but a man. I cannot deny myself any longer these feelings of honor and pride, to have had the privilege of agonizing in the joy of loving you. I have no doubt that you will be the most wonderful kind of happiness I experience in this lifetime."

Without even knowing, those were the words you'd wanted to hear for so, so long. Yes, you wanted him to love you, and you still do. But why did it hurt so badly?

"You... how can you still be so selfish after everything you've done?" Your nails dig into his hand that's cradling your face, but he doesn't let go. "How can you just—how can you show up and tell me these things when I've just gotten used to living without you?"

"It's because you could never live without me."

Sousuke pulls you in and kisses you. It's certainly not the sweet kind, but the way he holds you so dearly, the way his soft lips rightfully envelop yours—you finally submit to the belief that this is where you belong. He breaks away for a moment, regarding you with a kind of aching possessiveness that only a broken man could have, and then kisses you again.

--

A familiar, azure sky greets him upon his arrival in the Soul Society. He decides to observe the changes made, whether it be politically or socially, and what has stayed the same. Despite the new faces in the Gotei 13, his attention always drifted to you. As somebody whose worldview was malleable, and despised the rigidity of tradition, Aizen believed you were a key component in fueling its progressivism. So, naturally, overseeing your actions was a vital task in his eyes...

Whether that included memorizing your schedule or your habits, he told himself that noting these details would help him guide you back on the right direction in case you were ever led astray. You were beneficial to him. There was nothing more to it.

--

Filing case reports and taking on the majority of the grunt work when you should be resting instead? That won't do. Before you even have the chance to groan at seeing an enormous pile of paperwork, there's only a single document sitting on the table.

During your isolated training, a mishap occurs and you nearly injure yourself. Or at least—you should have. Somehow, the projection created from a Kido spell changed its trajectory instantaneously, causing it to barely graze you.

When a snarky junior Shinigami tries to get away with verbally harassing you, you clench your fist to sucker punch them. However, it awkwardly falls to your side when they suddenly head-butt a nearby wall. Again. And again. Flustered, they grumble under their breath and try another path. Thump. This repeats for some time until a passerby asks if they're okay.

"Something isn't right with these kids, man. It must be because of that Arby's burger from the World of the Living."

Strange and miraculous phenomena continue to occur around you. The limited-edition sweets that sell out instantly at your favorite dessert shop? Today, they happen to be in full stock. You wonder if it's your lucky day, or if this particular treat just sucks. Regardless, you snag a couple of them to taste; they're delicious.

When you're walking back to your squad's barracks, desserts in hand, you hear somebody call your name and turn around, only to see floorboards and pillars.

Your stomach churns at the familiar voice.

"Was that...? No, it couldn't be. I'm probably just a bit tired..."

--

The moon glows once again, overlooking the stillness of the night. You are no exception to the quiet ritual nature follows. Aizen hovers over you, watching how your chest slowly rises and falls as you're snuggled up in a blanket. It's endearing, he thinks. He also thinks about how soft your lips would be if he were to press his against them.

Dangerously, Aizen lets these thoughts wander, but not unsupervised. He imagines those same lips saying, "Good morning," while peppering him with kisses each day, reserving a smile only for him. Another domestic idea takes over as he pictures the two of you exchanging hushed bits of prose to each other underneath the sheets. In this scenario, Aizen would say something witty, and you would complete his phrase with a giggle. Oh, how he longed to hear your laughter. To see your eyes crinkle with mirth once more. All because of him.

These fantasies are interrupted when you murmur something in your sleep. Shifting away from you, his eyebrows furrow when he notices a wet bulge through his clothes. When did he become so desperate?

Meanwhile, you happen to be dreaming of the man right beside you. It must've been a distant memory, you think, because Aizen was still clad in his Captain attire. Everything appeared to be doused in a fuzzy light that softened his handsome features. The contents of the dream are lost to your subconscious, but the one thing you remember before waking up is his voice, saying:

"I promise to bring you happiness."

--

Anxiety creeps up on you the next day, your brain whirring with that dream alongside the odd miracles you've experienced. A chill runs down your spine as you try to recall when the first incident occurred. There was no way that the devil himself was next to you all this time, right? The same man who used and abandoned you?

In order to confirm this hypothesis, you venture to a deserted building in the Rukongai district to lure him out. It was too risky to do it in the Seireitei, where you could easily run into your fellow Shinigami. The whole point of this was to assure to yourself that it was simply a delusion, which, arguably, may be worse than Aizen actually being there. Either way, you muster up the courage to call for him.

"Aizen."

Your throat practically chokes out his name, and an uneasy feeling washes over you. What was this, a game of Bloody Mary? A few moments tick by, and there's nothing but silence.

"So, you've finally caught on."

You let out a startled yelp but get ahold of yourself promptly. It's him. He was really there!

Clearing your throat, you clumsily interrogate him, "What are you doing, fooling around in the Soul Society?"

"Fooling around? Hardly. What I'm doing is of paramount importance."

"If that was a joke, it isn't funny. You know there's nothing to get out of me—no tactical advantage, no secret superpower—nothing. I would be of zero benefit to you as you are now."

You're too distressed to even think about reporting him to the higher-ups. It would've been futile, anyway.

"You shouldn't put yourself down so easily. Besides, that's not why I'm here. I want to-"

"Go. Just leave. I don't want to see you anymore. You've hurt too many people, myself included."

He stays silent for a few seconds.

"What happened to them was unfortunate, I admit. But-"

"But what? I'm not going to listen to you and your twisted logic. Leave."

There's nothing but disdain and caution in your eyes. It felt like he was toying with you all over again. What if he was going to hurt you, too? Even if you unsheathed your sword, you knew he'd overpower you.

Aizen remains composed as ever, never faltering. But unlike his usual confident self, he's not wearing an arrogant smirk. Suddenly, he takes slow, deliberate steps towards you, as if using the loud pulse of your heartbeat as a metronome, determined to unravel your harmony. You back away until the wall stops you.

With a thoughtful gaze, his hand carefully glides over your heart. "...Are you afraid of me? Do you hate me?"

It wasn't that you were afraid of him, no. You were afraid that you still loved him. And you hated that you loved him.

"I hate you."

His hand trails up to your cheek, cupping your pretty face. The other pulls you closer to him. It shocked you how somebody so cold could be so warm. He leans in, whispering to your ear.

"If you hate me, would you let me touch you like this?"

You gasp when Aizen kisses your neck, arm wrapping around you tighter. His breath shudders when your whimpers reach him—it was the sound of your defenses falling apart. He smirks contentedly at your delightful reactions as his lips target your weak spots.

But before he can properly enjoy you, your hands try to push him away. Panicking, you feel yourself nearly relinquish your being to him. "L-let go of me!"

"I won't let you go."

He selfishly continues his ministrations. To him, you were like a helpless kitten pawing at his chest.

"Sosuke! Please..."

He immediately pauses when he feels your tremors. His heart drops. Were you crying? Releasing you from his embrace, he watches you as tears fall from your face. If he was going to have you, he'd rather you give yourself to him by your own volition. And if you were going to cry, those tears should be out of joy and pleasure, not sorrow.

In between sobs, you manage to croak out a few words, "I can't do this. Not with you."

His hand guides itself to comfort you, but withdraws quickly. There's an uncomfortable feeling in his stomach, something he'd forgotten about long ago: guilt. It didn't suit him, he thought.

"How can you be so sure of that?"

"Shut up. Just go."

"I won't."

"You will."

"I cannot."

Weakly, you lift your head up to look at him, face ridden with anguish.

"Please."

Aizen never took orders from anyone, yet you bent him to his knees with such ease. Slowly distancing himself from your trembling figure, he turns away from you and exits the vicinity, fighting against the urge telling him to sprint back to you.

He knew he made his entrance as a fairytale prince far too late. A king wouldn't have bothered with wooing his sweetheart; there were more important matters to attend to, after all. His eyes narrow at this fact. How foolish.

There's a stinging sensation in his chest, but he ignores it. He ignores how you rejected him. How bitter you were. How beautiful you were. How his carnal desires threatened him to take you right then and there and prove his undying love for you. But what he couldn't dismiss was how he didn't wipe away your delicate tears, even as you were in front of him.

All he could do now was watch over you in the shadows. It didn't matter if he wanted you.

From the moment he fixated on toppling the heavens, it would never be possible for him to keep his promise of happiness to you.

——

Thx for reading! I want to point out that one of Aizen's lines is from an old video of a Bleach jump festa! I'll put a link to it here!! :^)

“Do I?” he asked, knowing all too well that this had become a pattern, and he would have to do something about it soon.

He took another lover, finding one was never too difficult for a man like Aizen – handsome, eloquent, well-liked by almost everyone. Strangely enough, when he was with his new plaything, his mind still returned to the time he had spent with you.

Perhaps his body had grown familiar to yours, and that was why he didn’t feel the same satisfaction? It certainly started to bother him, like an unsolved arithmetical problem.

So he found you again, and to his surprise, you were doing just fine without his attention. You had your own life, your goals, your friends. You were never as addicted to him as he had thought.

This realization sparked a pang of something unfamiliar within him. Irritation. How dare you move on after all he’d done to you? And how dare you talk to this other man?

He didn’t exactly understand why it was bothering him. He would need more research on that topic. Deep down he boiled with self-directed anger, because you certainly did not deserve that much of his focus. Yet he had to admit that he apparently had developed some sort of attachment. Attachment that was supposed to be beneath him. Why wasn’t it beneath him then? He didn’t know.

He observed you from a distance for some time, as part of a strategic intelligence-gathering effort. Hidden in the shadows, he watched you from afar. He learned your schedule, the names of your friends, and your preferences.

When he approached you once again, he was prepared. Now he already knew everything there is to know about you. And with his charisma, and magnetic charm, he would easily lure you back into his spiderweb of manipulation and lies.

So when you told him that you didn’t want to play his twisted games anymore, a cold bitter resentment started to coil beneath his ribs. He wouldn’t show you his anger; he was too proud for that. His face stayed perfectly calm as he reached for his sword.

It had been a mistake to leave you alive, and now he decided it was the time to correct it. Doing it with his own hands, the intimate way, felt like a proper way of saying goodbye.

And as he held you, bleeding out in his arms, the satisfaction and relief of having solved the problem never came. On the contrary, he instantly regretted his decision.

You weren’t just a distraction, Aizen slowly realized.

This wasn’t mere obsession.

This ugly feeling he had… it might have been love.

This made me think, if Aizen was this strong from the start, and he quickly noticed the difference separating him from the other Souls, and Soul Reapers, he still believed that the Soul King was an entity that was more powerful than him, the entity that has some plan for Three Realms. And perhaps that was a reassuring thought. Because if there is someone to rely on, someone stronger, than there also is some order to this world, and it all makes sense, and he is not alone.

But the Soul King turned out to be but a puppet, mutilated and sealed by the lesser beings. Even if Reio had been strong once, now the weak decided for him. There was no godly plan, only Soul Reapers' deception. The hierarchy was all wrong, and turned upside down.

This meant for Aizen, that he could rely only on himself, there was no stronger entity in whom he could put his trust in. He would have to take matters in his own hands then. The throne cannot be vacant. If he is the strongest, he should correct the hierarchy back to how it should be.

And so the plan started to form.

But Aizen's grand plan isn't only cold logic, there is a strong feeling of anger motivating him. Anger at the Soul King for allowing this treachery to happen, anger at the strong to allow the weak to rule over him. Also, a sense of being lied to, tricked, and gaslighted as the original sin is kept secret for so many centuries.

The irony is, Aizen's new hierarchy would also start with deception, lies, and his crimes - the same way the royal families operated.

And even more bitter irony to that - Aizen in the end gets exactly the Soul King treatment. He is a parallel to Reio's fate, sealed away, judged and imprisoned by Shinigami and Central 46 - by beings weaker than him.

Perhaps this puts his ideas about the Soul King into perspective, making him see that being the strongest not always equals ruling over the weak.

The Soul King was replaced, just as Aizen wanted, and perhaps in the future another, better way of replacing the linchpin will become possible.

Yamamoto died and was replaced by a more progressive Head Captain, leaving the Gotei 13 with no original members remaining — the old Gotei is gone.

There was a technological boom in Soul Society thanks to Mayuri and Urahara working together again.

The Royal Houses — at least the Kuchiki clan — seem to have become less traditional, as Rukia's marriage to the low-born Renji didn't draw much attention.

The Central 46 was entirely replaced, and its decisions were influenced by both Ukitake and Shunsui, which suggests less centralized power and more flexibility within the institution.

The Visored were accepted back into the Gotei, Arrancars helped during the war, and even some Quincies aligned with them — all signs of a shift toward a more open-minded, inclusive, and less antagonistic structure within the new Gotei 13.

Things changed slowly for the better, without Aizen ruling over reality. Instead, Ichigo's bravery and self-sacrifice influenced the people within the system.

So Aizen remaining imprisoned feels more like his own choice than a punishment, as though there is no longer any need for him in this reality. The systemic change he wanted is happening at its own pace, and his goal has lost its meaning because Aizen himself has changed — influenced both by Ichigo and by his own defeat.

He lost, yes, but that defeat was exactly what he needed in order to confront his own flaws and internal contradictions.

During his sealing, Aizen is at his lowest, all his "godly" powers begin peeling away. He realizes he is not going to evolve into anything greater, and he fully understands that he has lost. At that moment, all his anger and despair resurface.

And that becomes the transformative moment for him.

He is forced to look beneath all that control and beneath the cold, collected facade — and it's an ugly, very human picture, but it is exactly the mirror he needed. Only then can he begin to understand himself without illusions, facades, or self-deception.

The evolution tends to look ugly, after all.

(A shoutout to this beautiful post by @cheese183818 who explained it better than I can. Go read it!)

To sum up, Aizen wins something important, he gained the mental space and time to self-reflect and accept the part of himself that had been deeply neglected through years of pretending, living a lie, and detaching himself from reality and from the people around him.

We know that he succeeds in this self-discovery because he is one of the only two characters shown to have fused with their zanpakuto. And from Ichigo's story arc, we know that this kind of integration is not only about power — it is about embracing the parts of oneself that were feared, hated, or misunderstood.

“Do I?” he asked, knowing all too well that this had become a pattern, and he would have to do something about it soon.

He took another lover, finding one was never too difficult for a man like Aizen – handsome, eloquent, well-liked by almost everyone. Strangely enough, when he was with his new plaything, his mind still returned to the time he had spent with you.

Perhaps his body had grown familiar to yours, and that was why he didn’t feel the same satisfaction? It certainly started to bother him, like an unsolved arithmetical problem.

So he found you again, and to his surprise, you were doing just fine without his attention. You had your own life, your goals, your friends. You were never as addicted to him as he had thought.

This realization sparked a pang of something unfamiliar within him. Irritation. How dare you move on after all he’d done to you? And how dare you talk to this other man?

He didn’t exactly understand why it was bothering him. He would need more research on that topic. Deep down he boiled with self-directed anger, because you certainly did not deserve that much of his focus. Yet he had to admit that he apparently had developed some sort of attachment. Attachment that was supposed to be beneath him. Why wasn’t it beneath him then? He didn’t know.

He observed you from a distance for some time, as part of a strategic intelligence-gathering effort. Hidden in the shadows, he watched you from afar. He learned your schedule, the names of your friends, and your preferences.

When he approached you once again, he was prepared. Now he already knew everything there is to know about you. And with his charisma, and magnetic charm, he would easily lure you back into his spiderweb of manipulation and lies.

So when you told him that you didn’t want to play his twisted games anymore, a cold bitter resentment started to coil beneath his ribs. He wouldn’t show you his anger; he was too proud for that. His face stayed perfectly calm as he reached for his sword.

It had been a mistake to leave you alive, and now he decided it was the time to correct it. Doing it with his own hands, the intimate way, felt like a proper way of saying goodbye.

And as he held you, bleeding out in his arms, the satisfaction and relief of having solved the problem never came. On the contrary, he instantly regretted his decision.

You weren’t just a distraction, Aizen slowly realized.

This wasn’t mere obsession.

This ugly feeling he had… it might have been love.

Momo - here the scene borders on intimate as Aizen deliberately cultivated the fake trust between them. He lures Momo close, stabs her while thanking her, keeping his facade of kind Captain Aizen till the very end. However, his initial plan was for Hitsugaya to kill her. He, again, didn't want to kill Momo himself. He didn't find her worthy of his sword. Of his truth. But when he does finally stab her, he claims this is mercy. He doesn't believe that Momo would be able to go on without him. Also, again (like with Rukia) he speaks of chopping Momo's body into pieces in front of someone who cares about Momo - in front of her friend Hitsugaya. So he not only discards Momo as a pawn he used, he additionally uses her as a trigger for another character.

And then comes the second time he tries to repeat the same model. During Fake Karakura Town fight, Aizen orchestrates everything the way that Hitsugaya stabs Hinamori (as Aizen initially wanted him to). So this says two things: Aizen still doesn't see Hinamori as a person who might have grown stronger after the suffering he caused her, he sees Hitsugaya that way - that is why he mentally tortures him. And he still uses Hinamori much like a mindless puppet. Even worse in this case, because here Hinamori isn't just brainwashed by him, she is basically injured and unconscious so he probably has to physically place her in his place for Hitsugaya to stab her. That is very similar to dragging Rukia around like a ragdoll. Also, it solidifies how Aizen has absolutely no sentiment for his ex-subordinate (unlike Gin or Kaname).

Hiyori - during Pendulum Arc Hiyori is getting Hollowfied alongside Kensei, Shinji, and the others. Hollowfication itself, in her case, is an unfortunate coincidence (Urahara ordered her to go there) but what happens during Aizen's conversation with Shinji is, again, the same pattern we have already seen. Aizen knows Hiyori is Shinji's friend. So to trigger Shinji, or perhaps to emotionally hurt him, Aizen orders Kaname to attack Hiyori. He doesn't do it himself. Of course not. That would be below Aizen. And he doesn't do it because Hiyori poses any danger, he does that after she speaks Shinji's name. While Hiyori is cut down, Aizen pays her no attention. He casually speaks to Shinji. And his provocation works.

Later, in Fake Karakura Town Arc this provocation is repeated by Aizen. Hiyori is targeted by Gin, however, Aizen comments on Shinji's reaction to her getting bisected. So it is not about Hiyori. Her bond with Shinji is used to get to Shinji before his fight against Aizen even starts. But Shinji manages to collect himself emotionally, probably knowing what Aizen intended.

Harribel - the only female Espada at the time of Arrancar Saga, and also the only Espada Aizen strikes down with his own sword. Not because she disobeyed him or betrayed him. No. Because she disappointed him. Bored him. Couldn't finish her fight fast enough. The fact that Aizen cuts her down himself might look like respect. He likes to tell his opponent that even drawing his sword against them IS a form of respect. However, the way he goes about it is totally disrespectful. Using hypnosis on her to stab her in the back. Telling her: "Don't make me swing my sword twice at someone like you." There is no respect in his words, and the treatment she got for her loyalty. The disrespect in this case might originate from multiple factors, not purely for her being a female warrior. Aizen is generally disappointed with Arrancars as lesser beings than himself, coming from Hollows. Aizen also doesn't accept reliance, and Harribel, sharing trust and respect with her three Fracción, represents trust, teamwork, support - things Aizen does not appreciate.

Orihime - she seems like an exception at first, as Aizen expresses interest in her power, almost appreciating what she is capable of. However, this quickly got dismissed by Aizen himself. He is not using Orihime's powers for any of his plans, and he treats her as a bait to lure Ichigo into Las Noches so he can further pushes his progress. So the moment Aizen realizes a female could be exceptionally powerful, he keeps her at a distance. Locks her up in her room. Allows potential harm to be directed her way (Loly and Menoly), and leaves her in a position of damsel to be saved. Telling her than a girl like her only needs to smile, which reads like an attempt to diminish her contribution to the war.

I am not counting in Lisa, Mashiro, and Soi-fon into this because in these cases the fight doesn't seem to vary from Aizen's encounter with male characters.

Yoruichi is an honorable mention, not because she gets attacked by him in any particularly cruel or personal way, but because during their 3 vs 1 battle it is Yoruichi who gets the most ignored verbally by Aizen. He has a dialogue exchange with Urahara, he comments on Ishin's Getsuga, but Yoruichi's comment about her legs (which is jokingly flirtatious on purpose to defuse Aizen's god-level ego at that moment) is met with a wall of Aizen's emotionless, flat reaction. Also, during the same encounter, Urahara is the one who gets the most of Aizen's attention, while Yoruichi is being clearly ignored conversation-wise. I think this is telling. It shows whom Aizen would rather treat as a conversation partner.

From these examples we see that female characters often work as extensions or emotional access/weaknesses of male characters he interacts with. He recognizes the connection, and uses it. He rarely engages in a longer conversation with a female character. He doesn't seem to see them as worthy or likely to progress after challenging them, he rather discards them when not useful anymore.

At the same time, there is no significant female character in Aizen's circle of closest subordinates. He is often accompanied by Gin and Tosen after they leave Soul Society. The Espada has only one female member. And his Arrancar maids - Loly and Menoly - get no attention from him, and are treated rather coldly, and strictly.

Interesting fact is that his two closest followers - Gin and Tosen, both have strong bonds with female characters. Kaname's whole philosophy of justice is inspired by his friend - Kakyō, and his need for revenge is a reaction to her getting brutally murdered.

Similarly, Gin's motivation began with Rangiku getting hurt by Aizen's lackeys. He is following Aizen for revenge, just like Kaname, and this revenge would be irrelevant if the bond with a female character had never existed. Aizen gets a glimpse into a power of that bond when Rangiku's cries over Gin's mutilated body. And what is Aizen's response to that scene? He tightens his grip on his sword, ready to strike her down. Just like he did to Gin.

As we see, Aizen not only targets multiple female characters, he also tends to target male characters who has a strong, personal connection to females. His main opponent are:

Ichigo - who inherited his protectiveness from his deep bond with his mother, and who also shares respectful and loving bonds with both Rukia and Orihime (both targeted by Aizen).

Urahara - who has a strong partnership with Yoruichi, and who also tried his best to befriend Hiyori during the pendulum arc.

These two characters, thanks to their connections (including, but not limited to, women) defeat Aizen in the Arrancar Saga.

Other characters, to whom Aizen seems to be particularly cruel toward are Hitsugaya, and Shinji. And again, both of them share strong, mutual bonds with female friends (Momo, and Hiyori). I already covered Kaname and Gin, I just want to add that in both cases Aizen kill them personally, as if punishing them for choosing the connection over his goal.

All the instances mentioned above, can suggest some sort of resentment or jealousy that Aizen carries toward other male characters who share emotional closeness with female characters. Or who perhaps are simply able to create meaningful, deep bonds with an aspect opposite to their own.

This resentment could be interpreted in a philosophical way, rather than as a simple misogyny. What he attacks is what the female characters symbolize.

Femininity in Bleach is connected with connection, care, attachment, protection of others and sacrificing oneself for the others (Masaki is an example, and how she defeats White by letting him bite her). Emotional intelligence represented by Orihime is another meaningful theme connected to femininity. With this comes compassion, empathy, supporting others and letting others rely on you emotionally (again, Orihime shows this, but also Ikumi, and Kukaku). And we already briefly touched on sisterhood, teamwork, motherhood and camaraderie represented by characters who are able to bring others together (Harribel, Matsumoto when supporting Orihime, Rukia training with Orihime). This places femininity as an important factor in creating community, and bonding people together, not by force, but by support and understanding.

Naturally, Aizen despises and lacks all these aspects, and they might be threatening to his belief in extreme individualism and self-sufficiency, his hate of dependency and reliance, refusal of being understood and connecting with others. What female characters represent in Bleach conflicts directly with Aizen's self-construct.

This could hint at Aizen's lack of internal balance between female and male aspects of self (anima and animus in Jungian interpretation, or yin and yang in thaois).

Yang - in taoism is a male aspect, the light (Aizen is compared to being like the Sun), white color (Aizen's color for the most of the Arrancar Saga), expansion, active energy, progress, strength. These are all aspects that Aizen clearly shows through the series.

Yin - the female aspect associated with the black (Shinigami color), the night, the moon, the stillness, passiveness, acceptance, introversion, the energy directed inward, intuition, treachery. Aizen exhibits only some of these aspects.

However, his power and his sword strongly resonate with Yin aspect (illusions, moon, secrecy), which makes me believe that Kyoka Suigetsu embodies Aizen's anima (female aspect), which he never fully accepted, internalized, or embraced. This creates an interesting contradiction: the power that defines him originates from aspects of himself that he appears unwilling to consciously acknowledge. Perhaps this is why we never see his Bankai.

Psychologically, this lack of acceptance of his own Yin/female aspect is self-destructive and keeps him from connecting.

The imbalance within Aizen may be caused by the absence of a maternal figure in his formative days, however this is speculative.

Whatever the reason, Aizen in multiple instances exhibits a dismissive attitude or violent rejection toward characters who are connected with female characters naturally, or toward female representation themselves, suggesting that he externalizes the rejection of a part of his own nature. But he also seems to envy what he dismisses because it makes him incomplete. Hollow. As three hollow holes he carries within himself after his final transformation.