A third-year student at Shuuetsu Academy with an almost supernatural ability to copy and master any power—basically a genius in the most literal sense. He's the leader of both "Adam" and "Eden," though "leader" might be generous given how things actually work.
Nagisa's the quiet type. He operates on his own wavelength, and he's genuinely bad at communicating without someone translating for him. That's where Ibara comes in—she basically manages him, and honestly, that's when his real potential shows up. Their dynamic lets him play up a "dictator" persona during performances, which works surprisingly well. Fans have noted more than once that he feels closer in spirit to one of the "five oddballs" than to actual members of "fine," and yeah, there's something about him that keeps people at a distance. He's almost alien in how he operates.
But beneath all that coldness, he's not trying to hurt anyone. Far from it—he's just trying to understand people, which is actually kind of endearing if you think about it. He's not proactive or ambitious in the way most people are. He just. exists, and moves along with whatever comes his way. An altruist, even if nobody's asking him to be one.
Content compiled by AnimeList.moe from publicly available sources.