Fujino Kiyoshi, or simply Kiyoshi as he’s commonly called, is one of the central figures in the anime and manga series Prison School, a creation by Akira Hiramoto. As a first-year student at Hachimitsu Academy—a school that recently transitioned from all-boys to co-ed—Kiyoshi stands out not just for his academic interests but also for his deeply serious demeanor. He’s often seen with a book in hand, quietly observing the world around him, which fits perfectly with his introverted and thoughtful nature.

At the beginning of the story, Fujino Kiyoshi comes across as shy and somewhat reserved, keeping to himself and avoiding unnecessary attention. But over time, something interesting happens—Kiyoshi starts to grow. He becomes more confident, more expressive, and even begins to step outside his comfort zone. This evolution is one of the most compelling aspects of his character. Despite his quiet start, Kiyoshi reveals a strong sense of justice and an unwavering loyalty to his friends. He genuinely cares about doing the right thing, even if it means bending the rules a little—or sometimes a lot—which inevitably lands him in some tricky situations.

Now, here’s where things get a bit more complicated: while Fujino Kiyoshi has this noble, principled side, he also has a mischievous, perverted streak. It’s almost ironic, really—someone so concerned with morality getting caught up in such ridiculous, often embarrassing antics. His crush on Chiyo Kurihara, a classmate he deeply admires, tends to bring out this side of him. Whether it’s sneaking glances or going to absurd lengths to impress her, Kiyoshi’s actions are driven by affection, even if they end in disaster. Still, you can’t help but root for him because his intentions are pure, even when his methods are questionable.

What makes Kiyoshi such a memorable character is how multi-dimensional he is. On one hand, you’ve got this bookish, rule-following idealist; on the other, there’s a hormonal teenager prone to comedic overreactions. Yet, throughout Prison School, Fujino Kiyoshi undergoes significant growth. He learns to balance his ideals with reality, gains confidence in who he is, and slowly becomes more assertive without losing his core values.

From a personality perspective, Fujino Kiyoshi clearly aligns with the INFP type. He’s introspective, often lost in his thoughts, and deeply sensitive to the emotions of others. Authenticity matters a great deal to him, and he strives to live by his own moral code. There’s a quiet idealism in everything he does—like when he tries to protect Mari from her abusive father. That moment, in particular, highlights his compassion and courage, even when it puts him at personal risk.

His love for reading isn’t just a hobby—it reflects his inner world. Books give him space to process emotions he struggles to express outwardly. And his empathy allows him to see situations from multiple angles, helping him understand people on a deeper level. But let’s be honest, that same idealism can backfire. Fujino Kiyoshi sometimes takes things too far in the name of justice, leading to consequences he didn’t anticipate. Still, it’s hard not to admire his sincerity.

When it comes to the Enneagram, Fujino Kiyoshi strongly exhibits traits of Type One—the Perfectionist. He’s drawn to order, structure, and doing things “the right way.” Whether it’s following school regulations or taking his responsibilities seriously, Kiyoshi holds himself—and others—to high standards. This often leads to self-criticism, especially when he feels he’s failed in some way. Guilt and shame aren’t uncommon for him, particularly when his actions don’t match his ideals.

There’s also an undercurrent of repressed frustration in Kiyoshi. As a Type One, he carries a sense of duty that can build pressure over time. When things go wrong or when he feels powerless, that tension can boil over, even if he doesn’t show it openly. It’s part of what makes his journey so relatable—he’s not just fighting external challenges, but internal ones too.

In the end, while we can’t say with absolute certainty, the evidence points strongly toward Fujino Kiyoshi being an Enneagram Type One. His need for integrity, his struggle with perfectionism, and his deep-rooted sense of responsibility all fit the profile. Combined with his INFP tendencies, Fujino Kiyoshi emerges as a richly layered character—someone who’s flawed, growing, and ultimately, very human.