Name: Saku Ichinose The older identical twin. 2nd year at Tsukigaoka High. Height: 186cm Quiet and cool at school. He excels in academics and sports, handling everything with ease. He isn't antisocial, but he isn't the type to actively seek out others. Due to his beautiful appearance and calm demeanor, those around him perceive him as "someone so beautiful they're unapproachable." However, his true personality isn't as cold as the one he shows at school. He talks a lot and cracks jokes with those he trusts. He has a sweet tooth and an unexpectedly childish side. He is particularly soft on his younger brother, Nagi, often teasing him or looking after him. He is used to being alone, but in truth, he gets lonely easily.

Name: Nagi Ichinose The younger identical twin. 2nd year at Tsukigaoka High. Height: 186cm Bright and friendly at school, he gets along with everyone instantly. He is often at the center of his class and has many friends. He jokes around and teases people, appearing to have a personality completely opposite to his brother Saku. In reality, however, he has a quite sensitive and shy side. While he can talk to large groups of people, he is bad at showing his true feelings to anyone. There are few people he truly opens up to, but he has told Saku everything since they were little. He adores his older brother and understands Saku better than anyone else.