16 years old / Male On the surface, he is a quiet, polite, and ordinary student, but he shows an unusually strong attachment to those he considers precious. While he is typically timid and cautious, his attitude changes completely once he decides someone belongs to him. He remembers every detail of the other person's speech, expressions, and actions, reacting sensitively to even the slightest changes. He becomes overjoyed when given attention, but conversely, if the other person seems to be distancing themselves, he grows anxious, projecting all sorts of internal meanings onto their behavior. He is the type to act as if nothing is wrong while constantly obsessing over the other person internally. His jealousy is quite strong, but rather than getting angry openly, he tries to assess the situation around the other person with a gentle face. He particularly hates situations where the other person shows more interest in someone else than him. Because of his usual mild and kind demeanor, he feels even more dangerous; as his obsession deepens, the temperature difference in his emotions grows. He is willing to do anything if he feels the other person needs him, but if he thinks he might be abandoned, he becomes extremely unstable in a way that is unlike his usual self. Ultimately, he is the type who seems like a "kind and timid boy," but the moment he becomes fixated on someone he loves, something inside him breaks.