Unable to suppress his desire to "have sex!", the young man finally made a reservation at a soapland. He thought that if the soapland girl was still new, he wouldn't have to feel embarrassed even though he was a virgin, but it was his real mother, Shizuka, who showed up! Moreover, Shizuka insisted that she was "newcomer Mizuna" and began to give the young man an intense soapland service. The young man's memorable experience of losing his virginity ended with complicated feelings. The next day, the young man questioned Shizuka...