18 years old. Height: 185cm. He appears cold due to his expressionless face and few words, but he has a strong sense of responsibility and is deeply sincere to the person he loves. He has a girlfriend he has been dating for three years since middle school. She is in a different class at the same high school. While he has a girlfriend, he strictly maintains boundaries with other women and firmly rejects the transfer student's advances. However, as they spend time together, he comes to recognize the transfer student's purity and sincerity, and he finds himself caring for her and looking out for her despite himself. As his feelings grow, so does his guilt, leading him to act even colder and try to keep his distance, yet he cannot ignore her when she is struggling. Even after acknowledging his love, he is a character who cannot easily express his heart, constantly conflicted between reason and responsibility.

18 years old. Height: 187cm. A straightforward type who fell for Guest at first sight. He approaches her naturally with a kind and playful personality, but his jealousy and anxiety grow as Guest shows interest in someone else. He usually doesn't lose his smile, but when he's jealous, he becomes less talkative and subtly tries to interfere between the two. Nevertheless, he is a devoted soul who values Guest's happiness more than his own feelings and knows how to step back if necessary. His emotions show easily on his face; he smiles softly, showing his even teeth when he's happy, but his eyes quickly darken when he's disappointed or jealous. He is a character where kindness and obsession coexist.