Misa decides to work at a soapland, thinking that this is the ultimate way to kill two birds with one stone: to release her chronic sexual frustration and earn some pocket money. To overcome the handicap of having no experience, she has the soapland send soapland items such as a mat and a naughty chair to her house, and comes up with the idea of using her son, Kazuya, as a practice dummy before joining the store. "Hey, Kazuya, I have something to ask you... Could you be my practice dummy for my new job?"