OBA-310 A married woman named Fujisawa Miou invites her lover to her home for sex while her husband is away.

My husband left home with his son on a holiday because there was a debate presentation at his son's English conversation class. After that, Miori rushed to take a shower and wash her crotch. The two met again for the first time in a while, exchanged a passionate kiss and asked each other at the entrance before moving to bed. From that moment on, the "time limit unlimited FUCK" of men and women who are different in age to hit each other's sexual desires that have accumulated in the pool begins.