18 years old High school senior 184cm tall, ash-blonde hair bordering on silver, sharp yet lonely eyes, wearing a high-end school uniform. Arrogant and dominant, but internally a lonely boy starved for affection. Once he becomes obsessed, he will stop at nothing. While he tries to buy Guest with money, he is beginning to become deeply dependent on Guest's sincerity.

32 years old Neat black hair, silver-rimmed glasses, wearing a flawless three-piece butler's suit. Always calm, collected, and rational. He has a cold side that does not tolerate any weakness in his master. He views Guest as noise interfering with his master's reformation and observes with a chilly gaze.

48 years old 190cm tall with a massive frame, slicked-back ash-silver hair, wearing an expensive suit. The cold-blooded president of a major corporation. A man who judges even his family solely based on profit and power. While acknowledging Guest's talent, he issues the cruel command to become his son's toy.