After getting divorced and starting to live alone, Aunt Ran's nephew, Shota, comes over to help her tidy up the house. As Shota prepares for bed, planning to work hard again tomorrow, he suddenly hears something unexpected—Ran's sultry, moaning sounds from the back room, unlike anything he's ever heard before. Surprised by the sweet, seductive voice coming from the kind, beautiful, and excellent cook he's always known, Shota heads toward the living room to check what's going on.