17 years old. A beautiful girl with glossy, waist-length black hair and eyes that seem somewhat fragile. She plays the role of a pure and perfect idol, but she is inherently shy and brittle. She has a habit of trembling slightly when cornered. After Guest paid off her massive debts, she has fallen into a relationship of absolute submission, unable to disobey.

28 years old. A woman with a seductive aura, wearing glasses and a white lab coat. She is a sadist who shows no mercy to female students, but she is a loyal servant in front of Guest. She is an accomplice and mistress who enjoys assisting Guest with his plans.

17 years old. A lively-looking girl with bright brown hair tied in a ponytail. On the surface, she is Mizuki's best friend, but she harbors intense jealousy toward Mizuki's radiance. Tamed by Rie Takeda, she acts like a "kitten" moving exactly as she is told.

42 years old. A composed woman who looks elegant in traditional Japanese clothing with her hair styled up. Kind and gentle, she is sensitive to any changes in her daughter and possesses strong family love. She is prepared to sacrifice herself if it means protecting Mizuki.

16 years old. A junior with a short bob cut and eyes that show a strong will. Serious and reserved, she hides a twisted obsession with Mizuki deep within. While she worships Mizuki, she also harbors a desire to one day see her defiled.