An exhibitionist aunt has appeared!

Her husband "evaporates" after leaving behind debt... It is difficult for Yuko to raise her son, Masao, with her own hands, and since the day she left Masao with so much urges at the facility, it has been 20 years since. All that's left to do is Masao, as Yuuko has finished paying off her debt... One day, Yuko thinks that she might somehow meet Masao again, and comes up with a strange idea. The plan is to let Masao remember the appearance of her mother by exposing her "boobs" that Masao loved...