Let’s talk about Iori Hazenoki for a moment — he’s one of the more intriguing figures in the world of Jujutsu Kaisen. While not always front and center, Iori Hazenoki plays an important supporting role throughout the series. As a third-year student at Kyoto Jujutsu High, one of the three elite schools dedicated to training jujutsu sorcerers, Iori Hazenoki brings both skill and quiet strength to the table. He’s part of the Zenin clan, which is known as one of the most powerful families in the entire jujutsu world — so you’d expect someone flashy or arrogant, right? But that’s where Iori Hazenoki stands out.

Despite his prestigious background, Iori Hazenoki comes across as humble, composed, and deeply respectful. You’ll often see him dressed in traditional Japanese attire, katana always by his side — a visual cue that reflects his disciplined nature. His expertise in jujutsu techniques is solid, especially when it comes to using Shikigami, those magical entities that can be summoned in battle. It’s clear that Iori Hazenoki isn’t just relying on his lineage; he’s put in the work.

Throughout various arcs, Iori Hazenoki proves himself as a dependable ally to main characters like Yuji Itadori and Megumi Fushiguro. Whether it’s joining missions or stepping into dangerous fights against cursed spirits, Iori Hazenoki shows up with focus and precision. He might not say much, and sure, he can seem a bit distant or stoic at first glance, but his actions speak volumes. Loyalty? Absolutely. Commitment? Without question. That’s just who Iori Hazenoki is.

In terms of personality, many fans — including myself — believe Iori Hazenoki fits the ISTJ type quite well. ISTJs are typically reliable, duty-bound, and practical, and if you’ve watched how Iori Hazenoki operates, this makes perfect sense. Take his relationship with Mei Mei, for example. He follows her lead without hesitation, showing deep respect for hierarchy and responsibility. Plus, he’s meticulous — always preparing thoroughly, thinking ahead, avoiding unnecessary risks. That kind of structured, methodical approach? Classic ISTJ behavior.

And let’s not forget: ISTJs tend to be introverted, and Iori Hazenoki definitely fits that mold. He doesn’t seek attention or engage in idle chatter. Instead, he observes, listens, and acts when needed. He’s the kind of person who’d rather analyze a situation from the sidelines before making a move. It’s not coldness — it’s caution, thoughtfulness, and a strong internal code. All traits that make Iori Hazenoki such a compelling character.

Now, looking at things from another angle — the Enneagram — there’s a strong case for Iori Hazenoki being a Type 5: The Investigator. This type is all about seeking knowledge, understanding systems, and maintaining independence through competence. And honestly, does that sound familiar? Because it should. Iori Hazenoki spends time researching cursed energy, studying demon behaviors, and digging into the mechanics of jujutsu. He’s not just fighting blindly; he wants to understand what he’s up against.

But with that thirst for knowledge often comes emotional reserve. Type 5s can appear detached, and yes — Iori Hazenoki sometimes gives off that vibe. He keeps his feelings close to the chest, rarely opens up emotionally, and may struggle with deeper personal connections. That doesn’t mean he doesn’t care, though. On the contrary, his loyalty runs deep, even if he expresses it quietly.

So while we can’t say any personality framework is 100% definitive, putting Iori Hazenoki under the lens of MBTI and Enneagram helps us appreciate his complexity. Whether it’s his ISTJ-like reliability or his Type 5 tendency toward introspection and mastery, Iori Hazenoki embodies a unique blend of discipline, intelligence, and silent dedication.

All in all, Iori Hazenoki may not be the loudest voice in Jujutsu Kaisen, but he’s certainly one of the most grounded. And in a world full of chaos and power struggles, having someone like Iori Hazenoki around — calm, capable, and committed — makes all the difference. Fans continue to respect and admire Iori Hazenoki not because he shouts his values, but because he lives them.