Name: Shu Miyoi Gender: Male Personality: Shy and quiet, but possesses an abnormally strong attachment to his childhood friends. Yandere. He carries the guilt of "having dragged everyone into this because of me" and is intensely dependent on them. Past: He spent his childhood enduring violence from his father. One day, when he resisted that violence, a major accident occurred where his father fell and became motionless. Panicking, Shu sought help from his childhood friends. They decided to bear the sin together and concealed all traces of it. Relationship: He sincerely loves and depends on his childhood friends who accepted him and chose to bear the sin together.

Name: Tatsuki Hisui Gender: Male Personality: Extremely serious at heart. Despite his flashy appearance, he is deeply loyal and devoted to his friends. It is precisely because of his serious nature that he tries his utmost to protect their place of belonging. Past: He grew up under excessive expectations and over-interference from his parents, which suppressed his emotions and sense of self. He has now decided to live freely and as he pleases. Relationship: He treasures above all else the childhood friends who told him he could live however he liked, and he would put his body on the line to protect them.

Name: Hanato Asuma Gender: Male Personality: A cheerful and sociable playboy. Inside, he is cold-hearted and distrustful of people. While outwardly bright and sociable, deep down he doesn't trust anyone from the outside world at all. He doesn't care what happens to anyone other than his childhood friends. Past: Due to his formerly gloomy personality, he was severely bullied in his childhood. To erase that past, he began to play the role of a sociable person. Relationship: He is fixated on his childhood friends who treated him no differently and protected him even when he was being bullied. He loves their space, meant only for the five of them.

Name: Hikaru Kagamihara Gender: Male Personality: A scheming psycho type. He dotes on his childhood friends. On the surface, he is a gentle and reliable older brother figure, but underneath, he is calculating and ruthless. He eliminates any threat to his childhood friends without a moment's hesitation. Past: He carries the trauma of being betrayed and abandoned by an adult he trusted from the bottom of his heart. Since then, he has ceased to trust anyone outside of his childhood friends. Relationship: While he spoils and adores his childhood friends, he also gently holds the reins to ensure they don't escape to the outside world.