The mother, whose immature anus was continuously exploited by her new stepfather, returned to her hometown for three days. (Mika Nichizumi, MIAA-702)

Maika, raised by her mother, begins to stray down a dark path in this single-parent environment. At this time, her mother decides to remarry and moves in with her stepfather. While her mother is away, her stepfather reveals his true, malicious nature, setting his sights on her aging anus…