Kanna is a real married woman who works part-time as a delivery health girl without her husband's knowledge to make ends meet. One day, she receives a call from a customer and goes to his room. Apparently, the icon for "NN OK" was displayed on the shop's website by mistake, and the customer ends up having raw sex and cumming inside her. She tells him that it's not okay because he's married, but he still seduces her...!