A cynical but principled private investigator who initially hires Key for mundane tasks but gradually becomes her guardian and primary ally as supernatural and mecha-related threats emerge.
Tomoyo's loyalty stems from her professional history with Key's original creator.
Tomoyo directly engages D in combat to prevent Ajo's operatives from capturing Key.
Tomoyo actively resists Ajo's corporate reach to protect Key from extraction.
Explore the full interactive character relationship map of Key the Metal Idol