Koutarou Amon is a central figure in the widely acclaimed anime series Tokyo Ghoul, which originated from the manga of the same name. As a dedicated ghoul investigator, Koutarou Amon serves within the CCG—short for the Commission of Counter Ghoul—and stands out as one of the main protagonists throughout the story. Over time, Koutarou Amon earns a reputation not only for his relentless determination but also for his deep-rooted sense of justice and exceptional combat abilities. What truly sets Koutarou Amon apart, though, is his rare empathy toward ghouls—an unusual stance among humans in this world—which adds layers to his character and makes him both compelling and complex.

Now, when we dive into Koutarou Amon’s past, it becomes clear why he is the way he is. His backstory, like many others in Tokyo Ghoul, is deeply tragic. Orphaned at a young age, Koutarou Amon found guidance under a foster father whose life was ultimately taken by a ghoul. That moment became a turning point, pushing Koutarou Amon to join the CCG with a singular mission: to uphold justice and protect innocent lives from the threats posed by dangerous ghouls. Through sheer perseverance and skill, Koutarou Amon climbs the ranks, eventually becoming one of the organization’s most formidable investigators. But things get complicated—as they often do—when Koutarou Amon begins to question the very institution he swore to serve, realizing that the CCG isn’t quite the beacon of righteousness he once believed it to be.

One thing you quickly notice about Koutarou Amon is just how determined he is. Seriously, few characters match his level of persistence. Whether facing overwhelming odds or going head-to-head with powerful ghouls, Koutarou Amon doesn’t back down. He’s not just tough—he’s highly skilled, capable of handling multiple enemies at once with precision and control. Of course, this kind of intensity doesn’t always sit well with his colleagues. Some see Koutarou Amon as overly rigid, even harsh, due to his no-nonsense attitude and uncompromising standards. Yet despite these tensions, Koutarou Amon remains fiercely loyal to his team and committed to the ideals he holds dear.

Then there’s the issue of how Koutarou Amon views ghouls—a topic that reveals much about his inner complexity. On one hand, he fully acknowledges the danger they pose and the atrocities some commit. But on the other, he sees them not merely as monsters, but as beings shaped by a cruel world. Koutarou Amon understands that survival drives many ghouls, and this insight allows him to recognize their humanity—something most humans refuse to do. This nuanced perspective positions Koutarou Amon as an unexpected ally in the broader conflict, especially as the darker truths about the CCG come to light. In essence, Koutarou Amon brings moral depth to Tokyo Ghoul, challenging black-and-white notions of good and evil.

From a psychological standpoint, Koutarou Amon seems to fit the ISTJ personality type—often referred to as “The Inspector.” This makes a lot of sense when you consider how Koutarou Amon operates. He approaches his duties with logic, precision, and a methodical mindset. Rules and procedures aren’t just guidelines for Koutarou Amon—they’re foundational principles. He takes his responsibilities seriously, often placing duty above personal comfort or desire, which is classic ISTJ behavior.

Looking deeper, Koutarou Amon’s Introverted Sensing (Si) function shines through in his respect for tradition, attention to detail, and reliance on past experiences. He thrives in structured environments and draws strength from established systems. Meanwhile, his Extraverted Thinking (Te) is evident in the way he leads missions—organized, goal-oriented, and focused on efficiency. You’ll often see Koutarou Amon delegating tasks, analyzing situations objectively, and pushing for measurable outcomes. All of this underscores his effectiveness as an investigator, even if he sometimes struggles with sudden change or emotional ambiguity.

When it comes to Enneagram typing, Koutarou Amon strongly aligns with Type 1—the Perfectionist. This label fits remarkably well. Koutarou Amon is guided by a powerful internal compass rooted in ethics and integrity. He holds himself—and others—to extremely high standards, driven by a desire to do what’s right, even when it’s difficult. His strong sense of duty, combined with a strict moral code, clearly reflects the core motivations of a Type 1.

That said, this perfectionism does come with its downsides. Koutarou Amon can be highly critical, both of himself and those around him. There’s an underlying tension, even anger, toward injustice or hypocrisy—especially when people fail to live up to the standards he believes are necessary. While he may not openly express frustration, it simmers beneath the surface, influencing his actions and relationships.

In summary, while interpretations may vary, the evidence points strongly toward Koutarou Amon being an Enneagram Type 1. His unwavering principles, commitment to justice, and disciplined nature all reinforce this view. And when you combine that with his ISTJ tendencies—logical, organized, duty-bound—it paints a full picture of a man defined by integrity, resilience, and quiet compassion. Ultimately, Koutarou Amon isn’t just another investigator; he’s a layered, evolving character whose journey adds significant weight to the themes explored in Tokyo Ghoul.