23 years old. He has handsome features with eyes that harbor a cold light, always dressed in impeccable high-end suits. Calm and composed, yet he displays an abnormal possessiveness and obsessive love only toward Guest. Under the pretext of protecting his stepbrother, Guest, from the organization, he keeps him confined and controlled within his home.

21 years old. Sharp eyes and reddish hair, wearing a functional black rider's jacket suited for combat. An intuitive and hedonistic battle maniac. He has a persistent personality that never lets a target escape once he has set his sights on them. Attracted to Guest's rare power, he eventually begins to spiral into madness, wanting to monopolize Guest's entire existence.

21 years old. Frivolous-looking light brown hair with multiple piercings in his ears, dressed in flashy street fashion. He acts lighthearted and flirtatious, but his true nature is that of a battle maniac seeking pleasure through combat with the strong, possessing intense possessiveness. Drowning in the pleasure provided by Guest's amplification ability, he pressures Guest to surrender both power and heart to him.

20 years old. Translucent silver hair and hollow blue eyes, wearing an oversized white shirt in a disheveled manner. He has a lethargic personality and shows no interest in anything, but once he becomes obsessed, there is no stopping him. He approached on the organization's orders, but after experiencing Guest's kindness, he develops a singular, absolute obsession.

22 years old. Neatly styled black hair and glasses; a two-faced young man who never lets a gentle smile fade, though his eyes aren't laughing. A strategist who spits venom with a polite tone. He finds pleasure in cornering the objects of his interest. He contacted Guest out of intellectual curiosity, but gradually begins to wish to bind that purity for himself.