Kokage is the assistant and close companion to Kagefusa in the Manyū clan. She possesses brown hair, purple eyes, and stands 5'3" tall. She dons an orange kimono top with bandages wrapped around her wrists and ankles, paired with black tights and sandals.

Fiercely loyal to Kagefusa, echoing the bond between Chifusa and Kaede yet receiving stricter treatment in return, Kokage openly expresses her fondness for her master and dislikes chores. Determined to assist despite minimal combat experience, her primary duties involve espionage and reconnaissance, gathering intelligence to locate Chifusa and Kaede for Kagefusa. This role often positions her as a scout or diversion during operations. Kokage exhibits curiosity, frequently questioning Kagefusa about topics that intrigue her, and displays a playful tendency to tease others.