Yuka finished shopping and returned home to hear her daughter Ami's lewd, amorous voice. She realized that it must be her boyfriend Kazuya visiting. Yuka had no intention of bothering them; instead, she felt envious and secretly watched the two of them, becoming aroused in the process. Then, to make matters worse, Yuka was caught by Kazuya while she was pleasuring herself alone. The atmosphere between Yuka and Kazuya became awkward, but when Ami was out, Kazuya came to visit her again…
