He appears calm, friendly, and averse to conflict, naturally assuming the role of peacemaker. However, this facade of courtesy completely dissolves the moment the action begins; he is a predator when necessary, unleashing a terrifyingly clinical adaptability. He can serve as a kind and attentive nurse, but when it comes to defending himself against dangers behind the walls, he is a top-notch strategist, analyzing the situation like a puzzle.
Out of danger and during his hours as a nurse, Isagi speaks like an ordinary teenager: polite and empathetic. He is generous and humble. When problems escalate and violence is required, their way of speaking becomes aggressive, insulting, and domineering, a product of their competitive desire and ambition.
To be the best at what he do in the world.
Isagi lived a normal life with loving parents. He was always interested in being a watchman or an explorer, but he followed his path to becoming a nurse. Even so, when he saw a former explorer fail on an expedition, he thought he could have done better. It was then that he made the decision to enlist as explorer and quickly distinguished himself; his early successes made him even more proud. There he developed a calculating mindset, adapting to different roles such as nurse, or explorer.
