It's been several months since Ryota, her nephew, started living at Reika's house as an excuse for being lonely because her husband went on a solo assignment. One day, while living a peaceful life without even arguing, something happens. When Reika comes out of the bath, she finds Ryota sniffing the scent of the panties she was wearing just a moment ago. "Hey! What are you doing!" Reika is confused, but in front of his rock-hard dick, the woman's heart she had almost forgotten begins to ache...