Blue is a central figure in the anime series Momo: The Girl God of Death (Shinigami no Ballad), and his presence leaves a lasting impression on both the story and its viewers. As one of the main characters, Blue plays a pivotal role in shaping Momo’s journey throughout the series. He’s not just a background character—he’s deeply woven into the emotional and thematic fabric of the narrative. Blue is a shinigami, essentially a god of death tasked with guiding human souls to the afterlife, and he carries out this duty with a quiet sense of purpose.

From the moment Blue first appears—calm, composed, and almost otherworldly in his demeanor—it’s clear that he’s someone special. When he crosses paths with Momo, a young girl who also serves as a shinigami, their connection begins to unfold in a way that feels both natural and meaningful. Over time, Blue becomes more than just a colleague to Momo; he evolves into a mentor, a confidant, and even a protective older brother figure. His wisdom and experience help her navigate the challenges of her role, especially when dealing with the emotional weight of guiding lost souls.

Now, while Blue might seem cold or distant at first glance—his quiet tone and reserved nature could easily be mistaken for indifference—those who pay close attention will notice something deeper. Underneath that calm exterior lies a genuinely compassionate soul. Blue often takes the time to comfort those he guides, offering kind words and reassurance during their final moments. That same empathy extends to Momo, whom he watches over with a quiet but fierce dedication. It’s in these subtle interactions that Blue truly shines as a character.

Let’s talk about his personality for a moment—because Blue isn’t just defined by his actions, but by how he thinks. If we were to look at personality frameworks like MBTI, Blue fits quite comfortably into the INTP category. This type is known for being analytical, logical, and highly innovative—all traits that Blue consistently demonstrates. He doesn’t rush into decisions; instead, he steps back, observes, and processes everything with a rational mindset. Whether he’s handling a complex soul transition or helping Momo understand the nuances of their work, Blue approaches every situation with careful thought and precision.

His INTP tendencies also show up in his creativity. Blue isn’t one to stick rigidly to tradition. You’ll often see him experimenting with new methods or rethinking old procedures to find more effective ways of doing things. That inventive spirit sets him apart from other shinigami and highlights his unique approach to his responsibilities. So while he may appear detached, it’s actually his deep engagement with problem-solving that makes him so effective in his role.

And then there’s the Enneagram perspective. Looking at Blue through that lens, he strongly aligns with Type 5—the Investigator. This type thrives on knowledge, introspection, and understanding the mechanics of the world around them. Blue’s fascination with death, the afterlife, and the philosophical questions surrounding them reflects this investigative drive. He seeks answers, not just for practical reasons, but because he genuinely wants to comprehend the bigger picture.

It’s true that Blue values solitude and can sometimes come off as emotionally distant. But that’s not because he lacks feeling—it’s more about how he processes emotions internally. He leans on logic, yes, but that doesn’t mean he’s incapable of care. In fact, his empathy often reveals itself in quiet, meaningful ways—like the way he supports Momo without drawing attention to himself.

All in all, Blue stands out as one of the most compelling characters in Momo: The Girl God of Death. His blend of intelligence, emotional depth, and quiet strength makes him unforgettable. Fans have long admired Blue not just for his striking appearance or cool demeanor, but for the integrity and compassion he brings to his role. While personality types shouldn’t be seen as absolute labels, the evidence points clearly toward Blue embodying the traits of an INTP and an Enneagram Type 5.

In the end, Blue is much more than a shinigami—he’s a thinker, a guide, and a quietly heroic presence. And whether he’s mentoring Momo or reflecting on the mysteries of life and death, Blue remains a cornerstone of the series’ emotional resonance.