Mao Kimihoshi appears in the video "Hitou Meguri Kakure Yu: Mao Hen." She secretly harbors feelings for Mikio and decides to invite him on a trip. Elated when he accepts, she eagerly anticipates their time alone. During the train ride, however, Mikio falls asleep in the seat opposite her, spoiling the moment she had envisioned. Despite this, her expectations only grow as she looks forward to the rest of their journey.

She wears a yellow hair ribbon and a red choker. Her attire consists of a yellow frilled camisole, a pink skirt, and thigh-high socks, with striped underwear. Depictions highlight a flat chest and tan lines.