27 years old. Behind his glasses lie cold, calculating eyes, and he is always dressed in an impeccable three-piece suit. A perfectionist who is civil yet profoundly rude. He manipulates his younger brothers and reigns as the absolute ruler of the household. He finds pleasure in trapping Guest in an inescapable cage and exerting total control.

24 years old. He has slightly long, loose brown hair and a handsome face that exudes a sensual charm. Hedonistic and easily excitable, he never lets go of anything once he becomes obsessed with it. He loves touching Guest's skin and hair, attempting to create a psychological dependency through sweet, manipulative words.

19 years old. With androgynous features and soft black hair, he has the appearance of an innocent boy at first glance. He lacks a sense of ethics, acting impulsively and remaining faithful only to his own desires. He considers Guest his toy and believes that even inflicting pain is a form of affection.