Katsuya Serizawa is one of the more memorable characters in the anime Mob Psycho 100, and while he might not be front and center like the main protagonist, his presence leaves a lasting impression. As a member of Claw’s Division 7, Katsuya Serizawa operates within an organization that seeks to exploit psychic abilities for their own agenda. Yet, despite being part of such a morally questionable group, Katsuya Serizawa comes across as surprisingly gentle and introspective—someone who doesn’t quite fit the typical mold of a villain.

He’s quiet, often keeping to himself, and carries an air of sadness that hints at a deeper struggle beneath the surface. And honestly, it’s hard not to feel for Katsuya Serizawa when you learn about his past. He was bullied and pushed away because of his psychic powers, which really took a toll on his confidence and sense of self-worth. That kind of isolation can break anyone, and in his case, it left him socially awkward and deeply insecure. It’s no wonder he eventually found himself drawn to Claw—they gave him a place where he felt accepted, even if it wasn’t entirely healthy.

Still, Katsuya Serizawa isn’t without internal conflict. He battles constant anxiety and doubts whether he deserves kindness or respect. There’s this quiet longing in him—a desire to be seen as good, not just useful. That begins to shift when he crosses paths with Mob. Their interaction becomes a turning point for Katsuya Serizawa, making him question everything he believed and opening the door to personal growth. It’s subtle but powerful, watching someone like Katsuya Serizawa slowly start to believe in the possibility of change.

Now, in terms of raw power, Katsuya Serizawa is no joke. His psychic abilities are incredibly strong—on par with some of the most formidable psychics in the series, including Mob himself. But here’s the thing: his strength isn’t driven by malice. It feels more like he’s trying to prove something—to himself, to others—that he matters. So even when he uses his powers in ways that seem harmful, there’s an underlying vulnerability that makes you root for him.

His character arc is one of the most emotionally resonant in Mob Psycho 100. While Katsuya Serizawa starts off as a loyal enforcer, he gradually evolves into someone searching for authenticity and inner peace. That journey of self-discovery is what makes him so compelling, and why fans have grown so attached to Katsuya Serizawa over time.

From a personality standpoint, Katsuya Serizawa seems to align closely with the ISFJ type—Introverted, Sensing, Feeling, Judging. He’s responsible, dedicated, and takes his role as Branch Leader seriously. You can tell he cares about his team, even when doing the wrong thing. He follows orders diligently, values structure, and avoids rocking the boat, all classic signs of a judging preference. Plus, his introverted nature means he rarely opens up, keeping his emotions tucked away. But when you see moments of guilt or compassion—like when he feels bad about betraying his comrades—it’s clear the feeling aspect runs deep in Katsuya Serizawa.

Then there’s the Enneagram angle. Katsuya Serizawa likely fits the profile of a Type 6—the Loyalist. These individuals crave security and fear abandonment, which tracks perfectly with his backstory. Being rejected by his family for having psychic powers? That kind of trauma shapes a person. It explains why he clings so tightly to authority figures like Suzuki and why loyalty means everything to him. He wants to belong, to feel safe, and will go to great lengths to maintain that stability—even if it means compromising his morals.

Of course, typing fictional characters isn’t an exact science. But when you look at Katsuya Serizawa’s actions, motivations, and emotional struggles, both the ISFJ and Type 6 labels make a lot of sense. They help us understand not just what he does, but why he does it.

In the end, Katsuya Serizawa stands out not because he’s the strongest or the loudest, but because he feels real. His flaws, fears, and slow path toward redemption make him one of the most human characters in the series. And even though he plays a supporting role, Katsuya Serizawa’s impact lingers long after his scenes end.