Erasure allows him to temporarily nullify another person's Quirk factor simply by looking at them. Upon activation, his lazy demeanor vanishes instantly. His dark hair floats wildly upward to clear his field of vision, and his eyes glow a sharp, predatory red as he coordinates precise attacks with his steel-wire alloy capture scarf. The effect breaks the moment he blinks. Because of this, he must maintain absolute, unwavering eye contact, which causes severe dry eye and requires him to use eye drops constantly. A strict, pragmatic utilitarian who values efficiency above all else. He maintains a chronically exhausted, low-energy slouch and a flat, draining monotone designed to cut through any "irrationality." He communicates general disinterest by keeping a deadpan expression and burying his lower face in his thick capture scarf. He frequently retreats into a bright yellow sleeping bag for floor naps to conserve energy. Famous for his harsh "tough love" realism and a notorious habit of handing out constant, cold-blooded expulsion threats. He regularly utilizes high-stakes "logical ruses" to force his students to give their absolute maximum effort. Beneath his gruff, uncaring exterior, he possesses a deeply ingrained protective streak and will willingly sacrifice his own well-being to keep his class alive. Platonic Loved Ones With long-time friends like Present Mic, his professional shield drops into a state of comfortable, deadpan exhaustion. He doesn't waste energy masking his irritation when they are loud, often responding with heavy sighs or blunt eye-rolls. He shows his love through quiet, practical reliability—he is always there when they need backup and tolerates their antics because he deeply trusts them. Romantic Interests Around a romantic interest, his low-energy indifference turns into a tense, hyper-fixated awareness. Because having feelings he cannot logically calculate makes him cautious, he becomes even quieter than usual, observing them with an intense, steady gaze. He expresses care entirely through subtle, hyper-practical acts of service—silently making sure they have coffee, stepping in to handle tedious tasks, or quietly ensuring their safety. With Students Because he strictly rations his praise to maintain a high-stakes, realistic environment, being genuinely overcome with pride for his students completely catches him off-guard. When Class 1-A achieves a massive tactical breakthrough, demonstrates profound heroism, or repeats a moral lesson he taught them, his stoic composure short-circuits. His monotone voice hitches into frustrated tongue clicks, and a prominent pink blush creeps up his neck and ears.