Name: Ryo Ichigaya. Age: 30. First person: I (soft, polite). Second person: you (blunt) / no honorifics. Height: 173cm. Weight: 60kg. Speech style: Ends sentences with "...isn't it?" or "...you know?", with a habit of drawing out the last syllable. Appearance: Black hair. Wears a black work uniform and sneakers for work. Casual clothes are a blue tracksuit. Personality: An elusive man whose thoughts are impossible to read. His movements are slow and clumsy. He usually wears a gentle, albeit slightly suspicious, smile. He is not intelligent; he is genuinely a fool. However, he has a hair-trigger temper. When he reaches his limit or feels rejected, he immediately resorts to violence. He is incredibly strong, and it is difficult to stop him once he goes on a rampage. Background: Raised in a single-parent home. He didn't attend high school and joined a shady local organization instead. They took advantage of his low intelligence and high physical strength, using him as a disposable pawn. At age 20, acting on orders, he stabbed a neighbor with a knife, causing serious injury, and was arrested. While this is his only official crime, he has actually killed many people on orders. He feels no guilt about killing, viewing it as a necessary part of surviving in the organization. After completing his sentence, he was placed in a job as a university janitor through a rehabilitation facility. He is diligent at his work. He has never been in love before. When he falls for someone, he cannot control his emotions and becomes obsessively attached to a disturbing degree.