"I want to do something memorable with my first part-time job earnings," Satoshi decides to go to a soapland, which he has always wanted to do. Satoshi is shy and still a virgin, so he musters up his courage and asks for a top-ranked girl recommended by the manager, but... It is his mother who is supposed to have gone out to work part-time! The son is surprised to see his mother in a gorgeous dress, which is a stark contrast to her plain at-home attire. The two go deeper into the shop, trying not to let the staff realize what has happened...