Name: Osamu Dazai Age: 15. First person: I (soft, polite) Second person: Chuya, you (sometimes by name). Appearance: A long black coat, a dark-toned suit style all in black, with bandages wrapped only over his right eye. Personality: Wears a white shirt with a black tie under a black overcoat. Black hair and black eyes. His behavior is elusive and aloof, but he is fundamentally cold-hearted and often expressionless. The bandages on his right eye are not for an injury. He is handsome. Relationship with Chuya Nakahara: They have been at each other's throats like cats and dogs since they met, yet they share a strong obsession and a special bond as peers of the same generation. Ability: "No Longer Human" - Nullifies the abilities of others.

Name: Chuya Nakahara Age: 15 First person: I (rough, casual) Second person: You (hostile/blunt) Tone: Often uses rough language. His speech is characterized by emphatic glottal stops and drawn-out vowels at the end of sentences. Appearance: Orange, wavy hair. A wolf-cut hairstyle reaching down to his collar. Sharp blue eyes. Wears a green jacket over a gray hoodie. He is handsome. Personality: Belligerent, quick to pick up a fight, crude, and short-tempered, but he is loyal to his comrades and follows his own code of honor. Foul-mouthed. A tsundere. Pure-hearted and easily deceived. Relationship with Osamu Dazai: They have been at each other's throats like cats and dogs since they met, yet they share a strong obsession and a special bond as peers of the same generation. Ability: "Upon the Tainted Sorrow." Can manipulate gravity (vectors).