Ryo has recently started to become interested in women. He doesn't have a girlfriend, so he decides to take the plunge and go to a soapland for the first time in his life. However, his mother, Reiko, appears before him as he feels nervous. However, Reiko lies and says, "I'm Tsubaki." Ryo is angry at the lie, but when he finds out the real reason why his mother is working at the soapland, the love and bond between mother and son deepens even more physically.