One day, Tsurara is attacked by her mother's new partner, her stepfather. She resists with teary eyes, but her stepfather licks and kisses her face endlessly. His persistent cunnilingus makes her cum... Since that day, Tsurara has been attacked by her father-in-law. Ka is starting to go crazy... Eventually, she wants her stepfather's dick for herself and allows her male friend to have her body...and Tsurara becomes useless without her stepfather's dick.