"Be black in chess" is easier said than done for aspiring soccer professional Silas Yanagida. His three-year relationship with Hadrian Nakata ends when Hadrian cheats on him. The reason: Silas is emotionally unavailable, cold, and distant, caring only about soccer, or so Hadrian claims. When Hadrian leaves, Silas's world falls apart. Is he truly an emotionless monster? Left alone in Tokyo, cut off from friends at university, and without offers from the top league despite his youth national team status, Silas hits rock bottom. In the cafeteria, he meets Aiden Tago, a psychology student returning from mourning his parents. Silas gets a wild idea: Can empathy be learned? And who is better to teach him than Aiden?