Five years ago, Erika and her son Satoshi became a single-parent household after their divorce. The two moved to Erika's countryside home, but Satoshi, with his introverted personality, struggled to make friends. For Satoshi, the only thing that could soothe his heart was his mother's buttocks. Erika also began to realize that she found her son's presence touching her buttocks, whether she was doing housework or sleeping, endearing and gradually started to find pleasure in it…
