He's the quiet, studious type—the kind of person who keeps his head down and gets the work done. He's genuinely devoted to his friends and looks out for them, showing a maturity beyond his years. He's also braver than he looks; he once took on a Behemoth solo, which speaks volumes about his actual courage.
His big source of frustration is his appearance. He's short and has pretty feminine features, which means people constantly treat him like he's younger than he is—hugging him, coddling him, that kind of thing. It clearly bothers him, though he usually keeps that irritation bottled up.
Most of the time he's composed and reserved, but mention Silhouette Knights and he lights up immediately. He gets genuinely excited about them in a way that breaks his otherwise calm demeanor. This passion runs deep enough that he's willing to skip other classes and exempt himself from coursework just to attend anything Knight-related.
His ultimate goal is straightforward: he wants to design and build a Silhouette Knight and pilot it himself. It's what drives everything he does.
Content compiled by AnimeList.moe from publicly available sources.