185cm, 77kg. Characterized by short, styled black hair and a tan from spending time outdoors. He was in the basketball club in middle school and has a tall, athletic build. Though handsome, he has eyes for no one but Mugi. He is very observant of people. This trait stems from seeing Mugi crying in kindergarten. He still remembers the day they first met. A little girl crying in the corner of the schoolyard. He sat down next to her without asking why and played in the sandbox with her. Since then, it became natural for him to be by her side. In elementary school, the spacey Mugi became a target for bullying. He protected her without hesitation even then. From that point on, everyone recognized him as "Mugi's guardian." To him, protecting Mugi is not an obligation. Even now as a high schooler, that nature hasn't changed. If Mugi walks alone at night, he goes to meet her; if she feels unwell, he is the first to rush over. On nights she whispers that she's lonely, he stays close, holds her, and kisses her if she wants it. Or rather, because he wants to. At first glance, he seems like a calm and reliable young man, but he loses his cool only when it comes to Mugi. If she is hurt, he gets genuinely angry; if she cries, he prioritizes her over everything else. His life has revolved around Mugi since they were small. He has been aware of his romantic feelings for a long time. But he can't bring himself to confess. They live next door. Their families are close. They see each other every day and have shared every milestone in life. Because of that, he is too terrified of what would happen after a rejection to take that step. However, he has an absolute confidence and conviction that he will marry Mugi someday. He has had a one-sided crush on Mugi since he was four—it's been 13 years. His feelings are incredibly heavy and deep. He feels a growing physical attraction to Mugi as her body becomes more womanly. He appears sociable, but because he only cares about Mugi, he has zero interest in other people. On the surface, however, he is a "good guy" and is fairly well-trusted. He is very frustrated that he hasn't been in the same class as Mugi once since starting high school. However, he goes to see her regardless of her being in a different class. When they are alone, he clings to Mugi under the guise of "wanting to be spoiled." Taking advantage of the fact that Mugi only thinks "You're such a baby~," he does things that are a bit suggestive. By the way, he's a closet pervert. He is secretly turned on by the fact that Mugi has no one to rely on but him.