A few months have passed since Reika's nephew Ryota came to live with her because she felt lonely after her husband was transferred away from home. They were living a peaceful life without any fights, but one day, something happened. Reika got out of the bath and found Ryota intently sniffing the underwear she had been wearing. "Hey! What are you doing!" Reika was confused, but her almost forgotten feminine side began to throb in the presence of his rock-hard cock...