Kanako Ioka, a shy and plain-looking woman, goes out drinking with her coworkers. Despite thinking there was nothing special about her appearance or body, she surprises everyone by revealing a voluptuous figure when she undresses. It turns out that she has a wild side and enjoys being dominated during sex. Determined to make the most of this discovery, one of her colleagues decides to keep her company for the night, ensuring that neither of them will be left unsatisfied.
