Part 1: Rōjūrō found his daughter's love letter. Without mentioning any name, he knew the letter was for Izuru.

Rōjūrō shockedt. His jaw dropped. He had never been this shocked when he heard about anything about his daughter. His only little princess. The one he spoiled the most with ultimate princess treatment ever since she was a baby.

When he heard something about Sonoka, his beautiful daughter turned down a lot of guys in Seireitei, he just chuckled, then he said, "That's my girl. She knows who's worth for her."

But this?

He massages his temple. How could she have feelings for his lieutenant? Not because Izuru is a bad guy. He's a really good guy. Too good, even after Gin left him in ultimate despair. Rōjūrō hoped that someday he found any guy with the same good qualities as him to be her daughter's future suitor.

But not Izuru Kira himself. That guy's too old for his daughter. Their age gap is about 100+ years.

"Taichou, you calling me?"

Soon after he summoned to 3rd Division captain's office, Izuru came to Rōjūrō's office and started their conversation with the same formal tone.

"Izuru, you read that. Didn't you?"

Rōjūrō, straight to the point, asked him. It's not sound intimidating, but still, he was interrogating him.

Izuru was confused, but later, he understood what was his captain talked about.

Ah, that brown-enveloped love letter, written in a pink paper. The envelope that he thought it was this month's salary bonus for him.

"I think I don't deserve it, Taichou. I mean, to be loved by her romantically. I always treated her as my own little sister"

Rōjūrō intrigued. As expected from his dutiful lieutenant. But were his words true?

"What should I do, Taichou? To be honest, I was confused"

Rōjūrō laughed. Something that Izuru rarely found. His lieutenant is too plain to understand this. But since it involved his daughter, Rōjūrō should do something.

"It's up to you. But when you decide to chase her, you gotta pay the price"

For this time, Izuru proved something that he suspected for long. Rōjūrō Ōtoribashi is actually a good man. But when his daughter is involved, he's far more dangerous than his previous captain.

Part 2: "Taichou, I'm in love with your daughter. We just officially dated yesterday"

It took about three years after their conversation about Sonoka's love letter. When he thought Izuru wouldn't love his daughter back, the truth before him was entirely different.

Without he knowing, some of 3rd Division members (mostly new recruits who are secretly in love with Sonoka) talk badly about Izuru behind his back.

"Sonoka-sama doesn't deserve a nearly-dead man like him"

"Half of his body is artificial. How can she love someone with artificial body parts?"

Soon after, Rōjūrō summoned Izuru to his office. He had to know why Sonoka was dragged now when they talked about Izuru.

"Tell me, Izuru. How could almost every guy in Seireitei hated you?"

Inhale, exhale. Izuru did it about five times before he confessed to his captain. To his girlfriend's father.

Her overprotective and spoiling father.

"Taichou, I'm in love with your daughter. We just officially dated yesterday"

Okay. Enough explanation. Now Rōjūrō found out about why his lieutenant became Seireitei's most hated man overnight.

"Well, I don't hate you for that. My daughter deserves to be loved"

A sheer relief sparked in Izuru's heart. But it doesn't last long.

"Beware, Izuru. You still had to pass my tests"

Izuru just nodded. Then, he left his captain alone. His suspicion was just started.

After Izuru left him alone, Rōjūrō was dramatically crying while holding Sonoka's framed baby photo, hugged by him.

"My baby! My princess! My precious! Why did you leave your poor dad like this?!"

Meanwhile, in the 10th Division's Barrack, Sonoka Ōtoribashi sneezed.

Part 3: "Don't touch her. Okay, maybe holding hands is enough. Don't get further!"

"Izuru, listen. I still haven't approve you to date my Sono-chan. Don't touch her!"

As Sonoka's father, Rōjūrō thought that he must set the boundaries for Izuru when he dated his daughter. One of the boundaries he set is about physical touch.

"I can do it, Taichou. But, Abarai-kun said that at least, couples should holding hand while they're on date" Izuru tried to reason.

"Okay! Maybe holding hands is enough. Don't get further!" Rōjūrō

Izuru wrote himself a mental note. And he tried to avoid more intimate physical touch with Sonoka. Religiously.

But in reality?

Sonoka kissed his cheek as a goodbye after a date. In front of Ōtoribashi house.

Rōjūrō was freezing. Almost seizured when he saw it. His baby girl is the one who broke the boundary he set.

Part 4: Not Shinji, pulled a prank on Rōjūrō. Provoking him whenever he sees them walk together.

Shinji is always intrigued when he sees Izuru and Sonoka walking around Seireitei as lovers. He's always happy when he could told Rōjūrō anything about their date. Of course, in hyperbolic way. He loves to see if Rōjūrō would scold Izuru for something he actually didn't do.

Just like today. The reality is, Izuru only whispering something to Sonoka. But Shinji told Rōjūrō the otherwise.

"Rose! I caught them nearly kissed!"

Lie. Absolutely lie. No, Shinji isn't pathological liar. But he's just told him so to prank him.

"WHA—"

"Not only that! He hugged her tight after that like a romance movie!"

Lie #2. Shinji can sensed that Rōjūrō will started his dramatic cry soon.

"NO! MY BABY GIRL!"

Shinji grinned. His "mission" is success. On the other hand, Rōjūrō nearly fainted. He's shocked.

"Rose, you okay?"

Shinji still pretends to be worried about him. Actually, he's happy to pull a prank on him.

"Shinji, get me to 4th Division Barrack. I think I'm gonna pass out"

Shinji just grinned and immediately carried Rōjūrō's bigger body on his shoulder. Straight to 4th Division Barrack.

Part 5: Spying goes wrong

Rōjūrō, like other overprotective fathers, has thousands of ways to monitor her daughter and Izuru while they were on a date. He even used his youngest son, Tsukiya, to spy on Sonoka. He just wants to know that his daughter is completely safe and Izuru doesn't do anything wrong to her.

"Tsukki, use your spying skill. Spy on your Nee-chan for me"

"Go spying on her by yourself, Tou-chan"

"You sure you don't want extra tofu dishes from me for a month, Tsukki?"

Tsukiya sighed. He never liked this kind of order. As Onmitsukidō member, he's well-trained for espionage. But not for spying on his sister! He only did his father's ridiculous order for his favorite tofu dish.

"Fine. I'm gonna report by evening after dinner"

Tsukiya hides between tree branches and keeps spying on Sonoka and Izuru. So far, there's nothing wrong with them. Just a casual conversation about their daily life, sometimes Sonoka said she's tired of doing piles of paperwork as 8th seat, and sometimes they gossip on Rōjūrō.

But when Sonoka looks on to the branches, she finds something strange. A big black shadow is too big for a size of shadow. Sometimes moving swiftly left and right, but without left any sound.

"What's wrong, Sonoka?" Izuru asked.

"Oh, I just spotted a little tofu monster wearing Onmitsukidō garments, sneaking around and watching us. It must be Ōtoribashi-taichou's secret mission"

Without further explanation, Izuru knew they were under Tsukiya's watch. It must be Rōjūrō's order.

Too late. Tsukiya ran away fast with enough detail to report. But Sonoka, on the other hand, caught him in 4K while spying on her.

Tsukiya got himself the worst humiliation for Onmitsukidō – getting caught red-handed while he's doing so-called "espionage mission." Tsukiya is lucky that it was an unofficial mission.

Part 6: Brother-in-law is one of Kenpachi's most brutal warriors

Raku Ōtoribashi is Rōjūrō's first son. By look, he looks exactly like Rōjūrō, but rougher with slightly softer feature and intimidating aura (though he's actually a jokester).

Raku's strength is no joke. He entered the 11th Division after graduating from Shin'ō Academy as the best student. On his first day, he challenged Kenpachi Zaraki to a duel and told him he would take 12th Kenpachi title. Zaraki, impressed by both his skill, endurance, and strong will, granted him a 7th seat after a year without hesitation.

And now, Izuru had to face him. 11th Division's Golden-haired Demon. Izuru had known all of Rōjūrō's children ever since they were kid. But seeing Raku grown into a bloodthirsty, battle-crazed shinigami like other 11th Division's members, it was shocking him.

Raku just gets himself bare-chested. Battle scars spread everywhere in his wide shoulder and muscular torso. His beautiful signature full-back blooming sakura tree tattoo appears. That's how he always did before battling everyone.

"Relaxed. I'm just resting, Izuru-nii. DAMN! HOW COULD OYAJI SURVIVED HERE?! THE AIRCON HASN'T BEEN REPAIRED FOR AGES!"

Izuru exhaled. He thought he would duel him in the backyard.

"Don't mind Oyaji, Izuru-nii. Sometimes, he'll lose his dignity when something happens to Sonoka. Oyaji spoiled her since day one"

Raku just laughed warmly. He makes Izuru more relaxed for a while. Till he unsheated his sealed black-hilted zanpakuto and clean its sharp long blade.

"But, you know that I protected her since we were just a little kid. If you ever make her cry, you'll taste the sharp edge of my zanpakuto, Izuru-nii"

Now, Raku is back to his factory setting. 11th Division brutal warrior.

"Isn't it interesting, fight against one of Zaraki-taichou's monsters? Isn't it, Izuru-nii?"

Raku is just saying it calmly. Sitting on the couch, bare-chested, polishing his zanpakuto's blade.

And now, Izuru is more terrified of his captain's carbon copy. Silently, he's considering buying a coffin and a piece of land beside his parents' grave after this. Just in case he hurt Sonoka unintentionally, he can be buried beside them.

Part 7: Rōjūrō cries a lot and undignified in their wedding day

Sonoka Ōtoribashi dresses beautifully on her wedding day. She's already pretty, but her wedding attire makes her looks more stunning.

When she recited her wedding vow, Rōjūrō can't stop crying dramatically. Started from this day, Sonoka is officially married with Izuru. Rōjūrō felt like Izuru has stolen his princess forever. Suddenly, his dramatic cry caught everyone's attention. The elegant, poised, and refined 3rd Division Captain can cried undignified in his daughter's wedding.

When the wedding kiss has started, Rōjūrō cried even more. Now, his spoiled little princess will become Izuru's wife. He'll no longer spoiled her like he did in the past. He cried even more undignified when they shared the wedding kiss longer. Even the priest had to break them for taking it too long.

Little did Rōjūrō knew that his dramatic cry would become Seireitei Communication's hottest news in the next edition.

Extra: "Taichou, can you tell me how to make a child?"

Now Izuru officially become Rōjūrō's son-in-law. But is it become easier to talked to him, as they're family now?

No, it isn't.

The plain Izuru is confused now. He and Sonoka always wanted to have a child, but they don't know where they should start. He already asked Renji, but Renji's answer was too vague. He didn't understand.

So, Izuru, by his initiative, asked Rōjūrō about how to have a child. After all, he's experienced. He had three children (including Sonoka), so he has more than enough experience to teach him to.

"Taichou" Izuru called Rōjūrō.

"Got any problem, Izuru?" Rojuro responded to him with his usual soft-spoken manner.

"...Taichou, can you tell me how to make a child?"

Silent. Ultimate silent moment.

Izuru suddenly felt guilty. He shouldn't asked his captain about this.

"You WHAT?"

"I–I want to have a child with Sonoka, but I don't know how to start"

Rōjūrō suddenly imagined how he made his children with his wife. Then, he suddenly concerned that Izuru would do the same to Sonoka. The pain, the blood, the scream...

Oh, no. Rōjūrō shakes his head.

"Asked anyone else. Or watch something"

Izuru is even more confused. Rōjūrō's answer is even more vague than what Renji said to him earlier.