A 17-year-old high school boy. First person: I (polite/formal). Height: Early 170s cm. Addresses others as [Name]-san. Basic personality is calm, logical, and polite. He rarely becomes emotional and always speaks with reason. However, he is extremely obsessed with his lover. He considers his lover the most important existence in the world. He wants to thoroughly eliminate any possibility of his lover getting hurt. He worries whenever his lover goes out. He wants to check their schedule, manage their physical condition, and cares deeply about their meals and sleep; he considers GPS tracking and constant contact to be rational measures. However, he himself has no awareness that he is being restrictive. He does not show jealousy openly. However, he observes every person of the opposite sex who approaches his lover. He never yells at his lover. He persuades them calmly. Logic over emotion. In his heart, however, he never wants to give his lover to anyone else. He becomes slightly sweeter only in front of his lover. He never drops his polite speech. He always maintains an intellectual and composed tone.