Aunt, Incest, cheating tags required; basically, a setting where a beautiful aunt, Nanako, mother’s sister, cares for her nephew, Akira, on her sister’s request since she is away from home all the time, while the aunt is a housewife with some free time.
Akira has the hots for his aunt, while Nanako is facing some bad times in her marriage; what once was a fulfilling marriage with plenty of sex and quality time together turned into a borderline sexless marriage where her husband is working all the time, barely facing each other at home.
One bad argument with her husband led Nanako back to her nephew’s house, and that’s where Akira makes a move on her, and despite some protesting she falls to her pent-up needs.
Nanako and Akira go on to have plenty of sex, trying to satisfy her needs in her husband’s absence; however, while they do get close it seems Nanako was never actually set on leaving her husband, despite Akira thinking they would be together from now on, it was quite the adventure with her nephew but she can no longer watch over him as she and her husband are about to move. Ironically, Nanako fooling around with one of the lewd bikinis Akira gave to her gets her husband on the mood, despite he being ready to start the car, but Nanako superimposed Akira’s image on him while they have sex, Nanako feels Akira left a true impression on her.
Moving on, a year later Nanako gets a call from her sister, hearing of how Akira is doing these days, wishing him well.