A father and son living in a single-parent household. The son was helping out at the auto repair shop run by his father. One day, a woman that his father wants to introduce appears. The son, who met that woman, Yuki, is captivated by her. The father and Yuki eventually get married, but the relationship between the son and his father deteriorates. The son, who had feelings for Yuki, one day forces himself on her...