Tooru was looking online for a long-awaited soapland for the first time he had bought his part-time job, and found a ranked girl he was interested in at a mature soapland and nominated for a reservation. However, what appeared there was... his mother! ! Amidst an awkward atmosphere, the mother asks her son to enjoy his proud soap play, saying, "I've come here for a while..." His son, who uses his mother's ultimate foaming technique, unintentionally ejaculates over and over again, forgets that his partner is his mother, and becomes obsessed with it...