Reiichirou Shiba

An exceptionally composed and brilliant individual, this intellectual figure maintains a calm demeanor and rarely questions his surroundings. While he shares a close, long-standing bond with Chika due to their middle school friendship, his mysterious expertise regarding the Butterfly case has earned him Shito's deep suspicion. Though he appears agreeable on the surface, his unsettlingly vast knowledge of recent events makes him a central figure of intrigue within the group.