#gachianalysis

What exactly is Dissociative Identity Disorder, and why may Fu have it? Dissociative Identity Disorder—or DID for short— is a complex mental health condition that stems from stressful experiences, trauma, and even abuse. The disorder causes the brain to have two or more distinct identities. These identities can differ from one another. The disorder causes a variety of symptoms such as: dissociation, gaps in memory (amnesia), behavioral changes, and distress in an individual.

Other disorders can be common in individuals with DID like: anxiety disorders, mood disorders, and even eating disorders. In other words, DID is a survival mechanism the mind causes to shield the individual from the set of impossible situations that they are facing.

Fu checks most of the diagnosis criteria for DID. Chapter 98 and 132 in the manga implies that Fu had gone through something traumatic that made him the way he is now. Fu states:

"I never want to take responsibility again… Because that way… The responsibility belongs to someone else. [and I don't get hurt…]", "… I get it… You've never made a decision for yourself… That turned out to be a huge mistake." These statements from Fu further imply that the choice he made was something that scarred him deeply. The manga doesn't delve more into his past (yet), so what led Fu to abandon responsibility all together is still unknown.

Dissociation is one of the major symptoms of DID—the DSM-5 defines dissociation as "a disruption and/or discontinuity in the normal integration of consciousness, memory, identity, emotion, perception, body representation, motor control and behavior". Let's look back on what was stated before, what DID comes from—trauma (in Fu's case). Not all people who have experienced trauma end up having DID necessarily, it's actually how the person coped with their trauma. Dissociation is often a source of escape for the people who have experienced these stressful situations. It often provides these individuals with a sense of relief from what they can't escape.

Prolonged dissociation is actually one of the main contributors to DID. Too much dissociation can cause a multitude of problems such as: gaps in memory, difficulty focusing, emotional numbness, feeling disconnected from your body and the world around you, and even increased anxiety or depression. We can see an example of these symptoms in chapter 61 of the manga:

"Um… My name is… Wait what was it again… Eh, Fu Orostor. That's my name…" Fu nearly forgets his own name. This piece of dialogue can be interpreted as Fu suffering from gaps in memory, which could've been caused by dissociation or just Fu's extreme anxiety (which could also be caused by too much dissociation).

Something I noticed in the manga was how dazed Fu looks at times. Like he isn't there at all, similar to dissociation. Examples of these moments are seen in chapter 131 and 137. In chapter 131, Fu can be found standing in a corner away from the rest of the cleaners. He looks quite disconnected from everyone and everything until August pointed him out. Again in chapter 137 Fu seems to be isolated from everyone and everything else.

One thing he thought caught my eye though: "I have mastered the techniques to soften the pain of feeling like an outsider." This piece of dialogue implies that Fu could be dissociating to numb the pain of feeling like an outsider. As I said before—dissociation can be an escape for many especially for people who have been through a lot.

The development of DID happens around childhood—when the child's personality is still in the developmental phase. Between the ages 1 and 5 the wiring gets set, and around 6-12 their personality begins to become evident. Things like trauma and other situations can affect this development in a child drastically.

When a child goes through repeated abuse and trauma their feelings have nowhere to go. These children not only dissociate, some may displace their feelings somewhere else. The child often points these feelings to someone else as a coping mechanism. The "not me" experience is usually the marker of DID.

While researching I stumbled across someone that stood out to me. Trauma psychiatrist, clinician, and researcher Milissa Kaufman—her research covers many areas of trauma related disorders. Kaufman had said something about how children experience DID:

"a child doesn't have many other ways to cope. They can't turn to their parents, since that is the origin. They feel like there are other people inside of them, and they can't tell anybody." These different "people" are formed as a response to childhood trauma. DID usually presents differently in children than adults, even having different indicators of the disorder as well.

Some children who switch often have extreme behavioral switches, fluctuating skills, and usually like to be referred to with a different identity. These children have huge memory lapses between these switches—not remembering behavioral outbursts even after they occur.

Dissociation is common in these children—zoning out and being in a trance-like state is quite common for them. As I said before dissociation is a coping mechanism for some—especially children who have nowhere to put their feelings.

Let's revisit the "not me" experience in children. As I said before children will direct their feelings to someone else. That someone can be a source of comfort to the child in their times of desperation through dissociation. Fu could've coped with what he experienced in that way with his Jinki.

Now let's take a look at Fu's jinki, Hii. Hii takes the form of a well loved wooden doll, implying that Fu must've had him for quite a bit. Hii differs a lot from Fu personality wise. He's rash, rude, and aggressive, while Fu is timid, shy, and anxious. They're complete opposites from each other.

Hii can be what's considered an "alter". An alter is a dissociated self state. Alters each have their own perception of self. They all behave, act, and identify in different ways. Alters can have their own wants, needs, desires, and opinions that differ from the core/host. To clarify, alters aren't a complete new individual, but an aspect of a complete person.

People who have DID are able to communicate with their alters at times. They can communicate in various ways. One of them is internal communication through the mind. There have been multiple instances of Hii speaking to Fu—the first appearance being around chapter 78. It isn't confirmed whether Hii is speaking aloud or internally though.

There are many functions and roles alters can have in a system. There are hosts, protectors, persecutors, introjects, and so much more. Different systems have different needs, and different jobs that have to be done. Every alter has a role to play for the system to keep functioning.

Different alters have different skill sets, that's why fluctuation in skill is quite present when looking into the disorder. When switches occur the individual may lose or gain different skill sets. This is quite present in Fu if we look a bit closer. In chapter 61 Fu states:

"But… But I have to…? I don't know how to start a battle… Wh-Wh-What do I do…?!!" Fu clearly does not know how to start a battle let alone fight in one, but in chapter 98 "Fu" suddenly gains fighting skills? Like I mentioned before—individuals with DID gain and lose skill sets when switches occur due to a losing/gaining of skills between alters.

Hii is there to help Fu with what he can't do: make decisions on his own. That's Hii's role as an alter. When there's no one for Fu to rely on then that's where Hii comes in. Hii often helps or guides Fu into decisions he cannot make for himself. Fu is physically incapable of anything without orders as stated by Hii in chapters 78 and 86:

"You can't do anything without me afterall.", "You really are completely and utterly useless without me around!". This shows how dependent Fu is on Hii. Besides making choices for Fu, Hii also defends Fu in battle, the skill Fu doesn't have. Fu may have strength, but he doesn't know how to use that strength.

So, when a fight rolls around, Hii is the one who often steps up to defend Fu. This can be backed up with a piece of dialogue from the Information Broker Arc, chapter 98—Hii mentions having a pact that Fu and him had made. He states:

"When Fu doesn't have anyone to order him around… And when he's gonna bust something up! His body… Becomes my body!!" This statement can be compared to how children will come up with dissociative alters to self soothe. Evidently, this makes Hii a protective alter.

Examples of Hii stepping up as the protector can be seen again in chapter 78. "Lets swap. I'll take over from here. If we've been abandoned, then we'll just escape." Hii stepped in to make sure Fu stays protected in his time of abandonment, because without Hii, Fu wouldn't be able to do anything for himself.

The question comes up once again, does Fu have DID? Overall Fu does check out the diagnosis criteria of the disorder. He suffers from anxiety, dissociation, behavioral changes, distress, switching, having internal voices, and skill fluctuation—which are plain signs of DID all together. At the end, it's most likely Fu could have DID, but without conformation there's no going further from there.

If there were any mistakes in this analysis concerning information about the disorder please let me know !!

Citations :

Wilkinson, Simon, and Margaret DeJong. “Dissociative Identity Disorder: A Developmental Perspective.” BJPsych Advances, vol. 27, no. 2, June 2020, pp. 96–98, doi:10.1192/bja.2020.35.

“Unraveling the Layers: Dissociative Identity Disorder as a Response to Trauma.” PubMed Central, May 2024, pmc.ncbi.nlm.nih.gov/articles/PMC11185985. Accessed 26 Mar. 2026.

Science Insights Team. “When Does a Child’s Personality Develop and Stabilize? - ScienceInsights.” ScienceInsights, 13 Mar. 2026, scienceinsights.org/when-does-a-childs-personality-develop-and-stabilize.

“Multiple Personality Disorder or Dissociative Identity Disorder: Etiology, Diagnosis, and Managemen.” PubMed Central, Nov. 2023, pmc.ncbi.nlm.nih.gov/articles/PMC10730093. Accessed 26 Mar. 2026.

“DID Research Homepage.” DID-Research.org, did-research.org.

DID Explained: Symptoms, Causes, and Support. 9 Mar. 2026, deconstructingstigma.org/guides/did.

“Developmental and attachment-based perspectives on dissociation: beyond the effects of maltreatment.” PubMed Central, Oct. 2020, pmc.ncbi.nlm.nih.gov/articles/PMC7678681. Accessed 26 Mar. 2026.

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So, why people even compare this two at all?

Both of this character follow the very fan-favorite (I'm the fan) ARCHETYPE of 'Teacher/leader/guide of the main character'. I'm sure we can all think at least one example. this trope generally includes;

Character is generally older, (28yrs old is very popular for this trope for some reason lol)

Character is the first or one of the first to introduce & guide MC to something new, an environment for example.

Character is generally presented as strong in comparison to MC or even the whole power system.

Character is someone the MC has to reach in terms of strength and then surpass. "The student become the teacher"

The most blatant example of this and who is arguably the blueprint for this trope is Kakashi Hatake from Naruto.

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Let's talk about GOJO.

Both as a character and an individual, his most important characteristic is that he is the strongest. Is literally the first thing we learn about him five seconds after he appears.

This specific trait is his what I call a core trait/theme. Remove this one thing and his character ceases to make sense. (which is not a bad thing, a lot of characters revolve around one thing)

As an INDIVIDUAL this trait has shaped him from the very beginning. Allowing him to appear as careless, arrogant, make threats to people that should be over him in the hierarchy. He is literally untouchable, but this applies both to his enemies and his allies.

"I alone, I'm the honored one"

Gojo's biggest problem is his loneliness. He was isolated as a child. The only person that was once in his level he surpassed and subconsciously left behind. And even now with students that appreciate him and that he loves, he is still alone. Due to his strength that makes him stand at the top of the world, there is no one else to stand with him.

And in his arguably most important individual arc, (Teen Gojo arc), it revolved all around two questions regarding his strength.

"Are you the strongest?", posed by Toji's and his first defeat. Which was eventually answered by himself in defeating Toji and declaring himself the honored one. and "What does being the strongest mean to you?", both were inquired, but only the first one was answered.

Now, NARRATIVELY speaking. Gojo's purpose is a safety net. Literally everything bad that happens is because he either just isn't there or is being held back in some way. He is meant to represent safety both to the characters and the viewers. Not to mention the peak of the power system.

Gojo is a very tragic character in my eyes. He was never truly allowed to seek human connection. And an answer to whether his strength was all there was to him, a human weapon, was never really given.

ie. Gojo's mot important trait is his strength. It affects his personality and how he interacts with others, his inability to form close relationships being a consequence of this. In the narrative he represents a safety net that the characters have to learn to live without. AKA: Learn to live without him.

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Now, let's talk about ENJIN.

Disclaimer; Enjin is a more difficult case. As we know nearly to nothing about him when it comes to his upbringing + he hasn't had a centralized arc like Gojo did. So our information is more limited and might include a bit (lot) of interpretation from my part.

Now it was a bit hard to pinpoint it, but I believe Enjin's core trait as we know him is his connectivity (for lack of a better word). Contrary to Gojo, this is not something we learn from the get go or is directly fed to us and rather something we slowly pick up.

With connectivity I mean his ability to not only connect with others but to help people connect with each other as well. Creating a web of relationships with him in the middle, as the ensign.

Enjin is in no shape of form a genius at social skills. We see it by the way he is at fault for escalating the Amo's situation. Even though it was doomed to go wrong one way or another but I digress. Even with his obvious flaws he is so caring and loving to those around him. He doesn't coddle the younger ones like naive children but he gives them a space to open up and encourages them to reflect on themselves and keep going.

What I mean with helping others connect with each other I mean in how his pushes help them mature out of their own volition and reach out to other people like he did with them. Enjin helps Zanka who goes out of his way to teach Rudo or when Enjin helps Rudo who reaches out to Amo.

He makes mistakes and will must likely continue to do so, but when someone is at their lowest he will be there, and he will reach out, whether is by extending a hand or putting himself as the obstacle to overcome.

He is true to his name by gluing people together, which has also been his purpose in the narrative up until now. He in a way, represents humanity in the sense that those who have lost themselves can find a way back to their humanity with him. Riyo for example, is very similar to Enjin in many ways, probably because he is her biggest role model in how to be human.

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So, how can this characters relate to each other?

Apart from the fact they fit the same trope, superficially speaking, Enjin's introduction makes him seem like he is going to fulfill a role similar to Gojo's. Which is I think intentionally deceiving. Let's look at their introductions for a moment, ignoring all that we know about them further from their very first moments.

They both appear in a moment of crisis. In Gachiakuta, Rudo is being chased by monsters he is clearly overpowered by. In Jujutsu Kaisen, Itadori become some weird tattooed guy and is about to be exorcised.

They both appear to be careless in different ways, Gojo simply laughs at the situations and talks about food, While Enjin complains about Rudo being too loud while there is a bunch of beasts piling up behind him.

And they both do a show of strength. Gojo literally calls it "I need to show off a little" and Enjin wipes out a bunch of huge ass monsters in one blow.

Even if their personalities in the situations differ, they both give away that same feeling of "oh this guy gonna help", sure we logically don't know either character and their intentions. But where our protagonist is in need of help, we assume this newcomer to be that savior.

The only main difference in both scenes and what I think is their biggest differ is ego. (LOCK IN!!!, a lot of text incoming focus focus)

They both present themselves in a different way. With Enjin calling himself humble or simple, while Gojo directly addresses himself as the strongest, or the best. And this might seem like a minor nitpick but I think it's more than that.

With this introduction, Enjin who was already in a way seen as superior in Rudo's eyes, as well as the viewer's, is purposely grounding himself (for lack of a better word again lol). Not to put himself down in self-deprecation, but rather to try to eliminate whatever sense of superiority he gave off that would made a possible connection later on difficult.

While Gojo is doing the exact opposite, he puts himself up as undeniably and overwhelmingly superior. Leaving a sensation of awe that automatically makes us and Yuji see Gojo in a different light in comparison to other characters.

Curiously, I believe they both had similar purposes. With Enjin making himself more grounded, more reachable, someone Rudo could potentially stand close to in a sense of safety. Gojo goes for a different approach, with his overwhelming strength he makes himself a symbol of safety as in "don't worry, I'm the strongest and nothing will happen while I'm here."

Essentially they are almost exact opposites of each other and I find that so interesting. Gojo's biggest problem is his inability to connect with others, both because of how he grow up and because of how he is seen by others and himself, he is in multiple stances, nearly seen as a god. Meanwhile Enjin's biggest advantage is how he is able to connect with people by putting himself next to them, not down, not over, but next, at the same level.

ie; Gojo tries to look for the humanity he feels he is lacking in other people. Enjin is the humanity others character are looking for.

But notice how I said ALMOST exact opposite, you paying attention??. Because I do believe there is some similarities to them worth pointing out.

And this might be a lil theorizing from my part, but it seems to me that Enjin, like Gojo, is a lonely man.

And don't get me wrong, both of this characters have very important relationships with others. And they are not lonely because of lack of trying by others. To me both seem to have emotional walls so high up that sometimes it feels like the others can't quite reach out to them like they would want to.

It basically screams a fear of being truly vulnerable and open to someone else. I know I just talked about Enjin's ability to connect, but I don't see this two things as opposite statements. Enjin has no problem in being seen as flawed and as human as everyone else, he willingly presents himself that way, but is a completely different thing to have someone actually try to pry into your mind in emotionally intimate way. He left his old name and possibly who he was before being Enjin, and he isn't willing to show that past.

Gojo has this problem as well, but it just so much more clearer with him. Because we know that he has problems to create deep connections with other people, which we can safely align to having problems being emotionally vulnerable. While Enjin's is so well hidden at least up until now that is hard to pick it up without some personal theorizing.

I also believe they both share a certain apathy they can’t quite chase away. Enjin once states that he is not a nice as Rudo as to care for a ‘rando’s life’ and he is shown to be the rather apathetic for people he doesn’t quite know, as he is with Amo at the beginning and even Rudo. But when he is in a situation where a LOT of people are in danger he can’t just look away to a massacre. Similarly, Gojo is willing to have a few bystanders victims, but he as well had a limit to how many death’s can he carry on his shoulders which even the curses now from the sealing in Shibuya.

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Summary.

While Enjin and Gojo share one same archetype, their core traits differ. Gojo's character revolves around connection. While Enjin's is about human connection. They both represent different kinds of safety for the characters, physical and emotional.

But they can also be similar, in a way they both are beacons of growth to the characters. And seem to share a fear of emotional vulnerability.

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Final thoughts.

As I said before, I think Enjin was meant to be a character intentionally deceiving in the way he is portrayed. Meant to make us believe that as a character, he would function similarly as Gojo did. That first power scene, the way he is referred to as "THE Enjin", and maybe even the way he calls himself humble in what could be almost taken as sarcasm initially.

But he functions very differently, he was never going to be an overwhelming force in the way Gojo is. The characters in JJK needed strength, they needed someone that brought them hope in the way of salvation. The characters in Gachiakuta need connection more than they need strength, specially with how important is that Rudo doesn't get caught up on his rage and loses sight of what is dear to him.

This is also why I found particularly funny the Enjin fraud allegations. like damn, that initial deceiving really did a number on ya. Not to say I don't find it hilarious when it comes from his own fans.

Anyway moral of the story is that life is happier when you leave behind power systems and go into a deep dive of the central topics revolving sharing-archetypes characters! yay!