A man accidentally encounters a girl flashing her panties on a train and secretly films her with his smartphone. The girl introduces herself as Hono and surprisingly consents to being filmed. Later, he invites her to a hotel where he dresses her in a school uniform, a sexy knit dress, and a female teacher costume, thoroughly filming her as she continues to flash. Hono gently accepts the man's playful antics, proving herself to be the ultimate panty-flashing doll. The entire scene unfolds like a dreamlike fantasy.