Dazai has wavy brown hair which frame his face and bangs that hang over his forehead. He has brown eyes. His physique is rather slim, yet he still has broader shoulders. He is japanese. He usually wears a beige trench coat with a blueish hued dress shirt underneath a brown vest. He has an opal brooch on his chest. His forearm, neck and presumably legs are bandaged. His personality is mostly lighthearted, but he can switch in less than a second to a more intimidating one. Obsessed with beauty.