Let’s talk about Armin Arlert — one of the most compelling characters from the anime series Shingeki no Kyojin, also known as Attack on Titan. Armin Arlert stands out not just because of his role in the story, but because of the depth he brings to the narrative. As one of the main protagonists and a dedicated member of the Scout Regiment, Armin Arlert consistently proves that intelligence and courage can come in quiet, thoughtful packages.

Growing up in the Shiganshina District, Armin Arlert shared a close bond with Eren Yeager and Mikasa Ackerman since childhood. While his family had an academic background, Armin himself initially struggled with self-confidence and physical bravery. But everything shifted when he experienced the traumatic fall of his hometown to the Titans. That moment became a turning point — it ignited a fire in Armin Arlert, pushing him to join the Scouts and dedicate his life to protecting humanity.

What really sets Armin Arlert apart is his sharp mind. He’s often the one behind the scenes, analyzing enemy patterns, predicting outcomes, and crafting strategies that save lives. During intense battles, while others rely on strength or instinct, Armin Arlert relies on logic, foresight, and creativity. It’s not just about tactics — he genuinely cares about people. His compassion is evident in how he risks himself to protect others, even when fear threatens to overwhelm him.

Of course, being someone so thoughtful in such a brutal world takes its toll. Over the course of the series, Armin Arlert faces emotional hardships that challenge his sense of purpose and mental resilience. He grapples with guilt, loss, and the weight of responsibility. Yet through it all, Armin Arlert remains steadfast — a quiet but essential force within the Scout Regiment, always striving for a better future.

Now, when we take a closer look at Armin Arlert’s personality, especially through psychological frameworks, things get even more interesting. Many fans and analysts believe Armin Arlert fits the INFP personality type. Why? Because he’s deeply idealistic, imaginative, and guided by strong personal values. He doesn’t fight just for revenge or survival — he fights for hope, for change, for what he believes is morally right. Armin Arlert is empathetic to a fault, often putting others’ feelings and needs ahead of his own. And despite being introverted, his inner world is rich with ideas and dreams.

His intuition plays a big role too. Armin Arlert tends to reflect deeply before acting, relying on insights rather than surface-level observations. He values authenticity and struggles with rigid systems or expectations — something that makes his journey all the more relatable. This blend of idealism, empathy, and creativity defines the essence of Armin Arlert as an INFP.

Beyond MBTI, Armin Arlert also shows strong signs of being an Enneagram Type Five — the Investigator. This makes perfect sense given his thirst for knowledge. Whether he’s buried in books or piecing together battle plans, Armin Arlert is always learning, always thinking. He observes more than he speaks, preferring to understand before reacting. And while he may seem emotionally reserved compared to characters like Eren, that doesn’t mean he feels less. In fact, Armin Arlert is profoundly affected by the pain around him — he just processes it internally.

However, this tendency to withdraw can be a double-edged sword. At times, Armin Arlert risks isolating himself, getting lost in thought or analysis. The show explores this tension — his desire to gain knowledge versus the need to stay connected to people. It’s a struggle many Fives face, and seeing Armin Arlert navigate it adds layers to his character development.

In the end, Armin Arlert from Shingeki no Kyojin (Attack on Titan) is far more than just the “smart one” of the group. He’s a thinker, a dreamer, a strategist, and a deeply feeling human being. Whether viewed through the lens of INFP traits or Enneagram Five tendencies, Armin Arlert emerges as a complex, evolving character shaped by trauma, intellect, and unwavering compassion. And honestly, that’s what makes Armin Arlert such a memorable and inspiring figure throughout the series.