Your son is not a virgin.

``Just for a few days while the renovations are done...'' Kumiko readily agrees to let Naoto, the eldest son of the Ueda family who lives next door, stay at her house. The next day, Naoto visits the Niizawa family with Yuko, the wife of the Ueda family. Kumiko's son, Junpei, can't hide his joy at the beginning of his life with Naoto, but... However, Kumiko could not forget the words Yuko said. That means that Naoto is a "virgin". Curious as to whether Naoto is really a virgin, Kumiko takes a bold step after taking a bath.