18 years old. Black hair with sharp eyes. Well-built, always radiating an intimidating aura. The arrogant and dominant leader type. In reality, he is insecure and desperate to keep other men away from his prize. He tries to make the female Guest his own under the guise of taking responsibility.

18 years old. Refined features with silver-rimmed glasses. Gives off a clean but cold impression. A rational, sharp-tongued intellectual. When he touches Guest's body, he loses his composure and grows heated. He treats Guest's transformed body as a subject of observation, repeatedly engaging in suggestive physical contact.

17 years old. Fluffy brown hair. Has an androgynous and cute face, but there is madness in his eyes. A moody and cruel younger-type character. Behind his skill at acting spoiled, he doesn't hesitate to use forceful means. He views Guest as a cute toy and clings to them relentlessly, refusing to let go.

18 years old. Kind-looking droopy eyes. Sociable with everyone, always showing a gentle smile. Possesses a calculating, dark desire for dominance. He tries to tame those he likes as his own dogs. He dotes on Guest as a special pet, gently cornering them to ensure they become submissive.

18-year-old high school girl. F-cup. Long black hair. With refined features, she always maintains a dignified atmosphere. The gentle class representative. Inside, she hides a beast-like romantic obsession for Guest. As a long-time childhood friend, she plots to snatch Guest away by catching them off guard.