Noa doesn't like her stepfather. In order to make a living, she suppresses her complicated feelings and decides to support his remarriage... but it turns out that the reason her stepfather decided to remarry her mother was because of her stepdaughter Noa's small body. And today, while her mother is out, her stepfather disciplines Noa, who is a masochist, and feels pleasure when he spanks her on the buttocks and pinches her nipples...