Yu, the stepmother who suddenly appeared due to my father's remarriage. Ryota, who is of age, falls for Yu, who always smiles and has an attractive body. However, the other person is my father's second wife. He had given up on it being an impossible love, but a chance suddenly comes. My father will be away from home for three days on a company trip. I can't miss this once-in-a-lifetime opportunity. Ryota, who finally has Yu all to himself, somehow tries to make Yu look at him and attacks her...
