Tanto-chan functions as a fairy within the Primagi entertainment system, specializing in supporting performers during their preparation. Her duties involve assisting Primagistas with costume changes and makeup applications before they go on stage. She consistently offers effusive praise and compliments as part of her support role. Physically, Tanto-chan features blond hair parted down the middle and dark purple eyes. She primarily wears a purple cloak with a hood adorned by cat-like ears. The bow accessory on her cloak changes in both color and decorative details across appearances. Her personality is characterized by a consistently cheerful and upbeat demeanor. Tanto-chan is frequently seen interacting within group settings alongside other similar entities, reflecting her sociable nature.