Nathan Hart is a minor yet intriguing character from the Japanese light novel series My Next Life as a Villainess: All Routes Lead to Doom!—a title that was later adapted into an anime in 2020. Known also by the name Nathaniel, Nathan is a student at the same prestigious academy attended by the series’ protagonist, Catarina Claes.

Nathan first appears in episode 7 of the anime, where it’s revealed that he is a vampire and a member of one of the academy’s secret organizations. At first glance, he appears quiet and reserved, maintaining a calm and composed demeanor. However, beneath this surface-level tranquility lies a more complex and, at times, unsettling set of intentions toward his fellow students. While he is technically one of Catarina’s potential love interests, his behavior throughout the series often contradicts the typical romantic archetype.

As the narrative unfolds, Nathan’s true motives begin to surface, and his character arc takes a notably darker direction. He is revealed to be part of a clandestine group that seeks to eliminate non-human students from the academy—a group that, ironically, includes Catarina herself, who is a reincarnated individual from Earth. Moreover, Nathan harbors feelings for Catarina’s close friend, Mary Hunt, and is willing to go to extreme lengths to ensure nothing stands in the way of his affection.

This duality in Nathan Hart’s character brings a unique layer of tension and intrigue to the series. His composed exterior contrasts sharply with his morally ambiguous actions, making him a compelling and unpredictable figure. Nathan Hart plays a meaningful role in My Next Life as a Villainess: All Routes Lead to Doom! and contributes significantly to the progression of the overarching narrative.

From a psychological standpoint, Nathan Hart seems to align with the ISTJ (Introverted Sensing Thinking Judging) personality type. This classification is often associated with individuals who are methodical, logical, and highly detail-oriented—traits that Nathan clearly exhibits. He is portrayed as a serious and disciplined student, deeply knowledgeable in his field, and someone who values structure and responsibility. Nathan frequently takes initiative and sees tasks through to completion, highlighting his dependable nature. His decisions are often grounded in facts and logic, which is consistent with the ISTJ preference for realism and practicality.

At the same time, Nathan can come across as rigid and resistant to change. He appears to struggle when faced with unexpected developments or ideas that challenge his established worldview. Additionally, he keeps his emotions tightly regulated, favoring rational thought over emotional response, which is another hallmark of this personality type.

While personality types are never set in stone, Nathan Hart’s demeanor and decision-making processes strongly suggest an ISTJ orientation. His responsible nature, structured thinking, and reliance on factual data all point toward this classification.

Looking further into Nathan Hart’s character through the lens of the Enneagram, he also exhibits traits commonly associated with Type 5, known as “The Investigator.” This becomes especially evident in his relentless curiosity and thirst for knowledge. Nathan is often seen immersed in research, particularly when it comes to magical theory and scientific exploration—areas where his analytical mind truly shines.

He also tends to withdraw from social settings, preferring solitude or small, controlled interactions. This behavior is typical of Enneagram Type 5 individuals, who often seek to conserve energy and maintain independence. Nathan displays a certain level of emotional detachment and caution around others, possibly stemming from a fear of being overwhelmed or losing control. Despite this, he proves to be highly resourceful and inventive, often devising clever solutions to the challenges he faces.

These traits serve him well in his academic pursuits and reinforce his identity as a dedicated scientist and thinker. Although Enneagram classifications are not absolute, Nathan Hart’s personality and behavior patterns strongly reflect those of a Type 5.

In summary, Nathan Hart from My Next Life as a Villainess: All Routes Lead to Doom! is a layered and thought-provoking character whose actions and motivations contribute significantly to the series’ depth and drama. His ISTJ-like traits and Enneagram Type 5 tendencies further enhance his complexity, making him a memorable figure in the story.