Ryota, who lives with his father, recently broke up with his girlfriend and has been feeling down. In this situation, his father struggled to introduce his new wife, Momoko. When he consulted her about it, she said, 'I'll cheer him up!' and the three of them started living together. Even as their new life began, Ryota remained closed off emotionally. One day, however, he accidentally saw naked Momoko in the bathroom. From that day on, Ryota gradually regained his energy, and seeing this, Momoko's physical affection towards him became more intense each day...
