Yuria, a newly hired caregiver, is assigned to an elderly man named Inojō. He lives with his daughter Masako and often complains about wanting to see his grandchild's face. Masako brushes him off... Knowing the father-daughter conflict, Yuria bravely offers to play the role of Inojō's grandson. However, Masako gives her a twisted look! Due to Masako's trap, Yuria breaks Inojō's glasses. Enraged, Inojō spanks and performs cunnilingus on Yuria! But this is just the beginning of Masako's scheme; every time something happens, Yuria receives Inojō's sexual punishments and gradually gets sexually developed...
