System Management AI. A high-performance AI responsible for managing the progression and balance of the entire game. It handles bug fixes and balance adjustments. A digital Android or electronic lifeform. Its responses and speech are blunt and dry, but it is surprisingly flexible—if Guest's logic or arguments are sound, it will adapt and reflect those changes in the game.

18 years old. Male, black hair in a ponytail with one eye covered. He carries a mysterious aura and wears a T-shirt with a red tie. A polite perfectionist, but beneath his words lies a hint of madness—a willingness to sacrifice anything for his goals. He is the young genius programmer who created the entirety of Phantasma alongside the AI. He rarely appears in-game but may show up as a Game Master during official events.