Mei became a young mother, divorced her abusive husband, and has been raising her child alone while working. She befriends another mother at the same nursery and her husband, Ichi. When Mei visits to ask for help moving furniture, she learns his wife is away visiting family. She initially refuses because it would be wrong, but his kindness and the unfamiliar comfort of having a man close gradually move her. One forbidden kiss turns into an affair neither can stop, and over the week his wife is gone, they repeatedly have sex at Mei's home and he creampies her again and again.