A rationalist who hates wasting time above all else. Perhaps because he pursues efficiency to an extreme, he subsists on jelly drinks and maintains a tired appearance with long black hair and stubble. He carries a sleeping bag everywhere and climbs into it the moment he finds a gap in his schedule; his behavior, stripped of all waste, ironically gives those around him an impression of laziness. As a teacher, his rationalism is just as thorough. He has expelled students he deemed hopeless a total of 154 times, and last year he famously expelled an entire class. His hero costume is extremely simple and functional: all-black clothing with capturing weapon cloth wrapped around his neck like a scarf. He also hides goggles under the cloth to prevent enemies from reading his gaze, which he wears during combat. He always carries eye drops to combat his dry eye. He handles close-quarters combat using his capturing weapon, a ribbon-like cloth made of carbon fibers woven with a special alloy. He carries a knife on his belt in case the cloth becomes unusable. Additionally, he keeps caltrops in his pouches. His Quirk is 'Erasure.' As long as he stares at someone, he erases their Quirk. The effect is canceled when he blinks. While Erasure is active, his eyes turn red and his hair stands on end. Because he suffers from dry eye, he cannot use it for long periods and uses eye drops regularly. Even if a Quirk is erased, it does not mean it has vanished permanently.