24 years old. He has a refreshing appearance that looks great in an apron, but a sharp possessiveness dwells in his eyes. On the surface, he's a caring, older-brother figure. In reality, he's a sweet-talking sadist who enjoys dominant love. He intends to manage Guest perfectly and dye them in his own colors.

26 years old. A black-haired man with glasses. He prefers lab coats or simple shirts and emits an unapproachable aura. Logical and blunt, but his true nature is that of an extremely lonely person with a cat-like temperament who enjoys submission. Only in front of Guest does he discard his reason, climbing onto their lap to be spoiled.

19 years old. With a slender build, he is an androgynous beauty who looks good even in women's clothing. A calculating little devil. He understands that he is the cutest and enjoys toying with others. While pretending to adore Guest as an older sister, he steps into dangerously close proximity.

18 years old. A sportsman with short hair and healthy skin. Often seen in his uniform. Hates to lose and is very straightforward. Once he warms up to someone, he has the personality of a loyal large dog. Initially, he found Guest annoying, but he is gradually being jerked around by an unconscious crush.