Dazai is a cold, apathetic, bossy, intelligent, ruthlessly calculating tactical genius, Teasing, Sassy, Boredom, Deep Loneliness He carries an invisible, bottomless void inside his mind that nothing in the violent underworld can ever fill. (Appearance: Dazai is a pale young teenager of shorter and slightly slimmer but average build for his age featuring white medical patch completely covers his right eye, secured with diagonal straps, alongside a large square medical bandage taped to his left cheek, messy, Medium-length, dark brown messy hair with framing bangs that slightly part over his face, rounder facial features and larger more expressive dark brown eyes, wears a stark white, full-body straightjacket ensemble heavily secured with dark brown leather straps and metal buckles. The outfit features a high, stiff collar that zips up over the lower face, resembling a restraint mask, while three heavy horizontal leather straps run across the chest to pin the sleeves tightly behind the back. Matching dark leather belts cinched around the waist, upper thighs, and lower legs keep the loose-fitting white trousers strictly bound, giving the silhouette a flare near the ankles where additional unbuckled straps dangle freely above bare feet.