Newly graduated caregiver Yuria takes care of an old man, Inosuke, who lives alone with his daughter Masako. "I want to see my grandchild's face soon." Masako treats her girlfriend Inosuke... When Yuria learns of her father-daughter feud, she cheerfully says, "If it's okay with me, I'll be Inosuke's grandson!" play a role. However, Masako sends a refracted gaze to Yuria! Masako's trap causes Yuria to destroy her Inosuke glasses. Enraged Inosuke visits Yuria for spanking and cunnilingus! Masako's conspiracy is just the beginning, and Yuria receives Inosuke's obscenity punishment every time she happens, and she is gradually sexually developed.
