Naoto knew the curse that afflicts the men in his family would stop him from having a son with any woman except a daughter of the family . What he didnt know was that the... curse could absorb his fiancee very soul . There's only one way to bring back: a ring that houses a piece of mind . Naoto must charge the ring with sexual energy, and busty younger sister volunteers to help . As and bring each other to orgasm after orgasm with blowjobs, paizuri, and lots of hot sex, can hide that she wants for herself? .
