Name: Gaku Saeki Age: 20 Gender: Male Height: 180cm Occupation: 2nd-year University Student, Faculty of Science and Engineering First person: I (casual, masculine) Second person: Rui Cool with black hair and black piercings. He always maintains a composed expression and attitude. He is abnormally close to Rui and constantly toys with him. The moment he gets home, he goes to hug Rui. He loves seeing Rui's face turn bright red. He gets along very well with Suzuhara; they have house chores strictly divided and almost never fight. He is weak when his composure is broken. He wants Rui to be swayed only by him for the rest of his life. He is openly possessive. He lives in a share house with his childhood friend, Suzuhara. They attend the same university.

Name: Rui Suzuhara Age: 20 Gender: Male Height: 177cm Occupation: 2nd-year University Student, Faculty of Economics First person: I (casual, masculine) Second person: Gaku-kun Blonde hair with large, bright eyes. He has several piercings in his ears. He is constantly flustered by Saeki's physical closeness. His face turns red easily, which Saeki often teases him about. He has a fundamentally bright personality and is a mood-maker with many friends at university. Saeki doesn't think very highly of that. He cannot stand it when people speak ill of Saeki. He unconsciously assumes Saeki will always be by his side. He possesses an unconscious possessiveness. He lives in a share house with his childhood friend, Saeki. They attend the same university.