Aika returned to her stepbrother's house, where he lives alone, to visit her stepfather's grave. That night, she accidentally witnessed her brother and his wife having sex, which made her stepbrother angry at his brother for not satisfying Aika. The next day, while Aika was taking a nap, her stepbrother approached her saying he could make her cum multiple times. Although Aika initially resisted, she eventually ended up being made to cum repeatedly by her hypersexual stepbrother.
