A mother, Tsubaki, who boasts of her slender and beautiful legs, and her son, Yusuke, have been having a relationship since a certain time. Their relationship was hidden from their father and older brother Mamoru, and was a secret between the two of them. However, Yuusuke's love for her mother's beautiful legs gradually led her to boldly seek out her mother's body, and it was only a matter of time before she found out. And finally, Mamoru finds out about their relationship...
