After rescuing her sister Daliah and saving the world from darkness, Meltys returns home to find that her adventures have left her with an insatiable sexual appetite. This discovery coincides with the town's "sexual thanksgiving" festival, where Meltys, her mother, and Daliah abandon their inhibitions to indulge in a hedonistic celebration of lust and submission.
After successfully rescuing her sister Daliah and saving the world from darkness, Meltys returns to a peaceful surface. However, she soon discovers that her journey has left her with an incredibly high "slut level" and uncontrollable sexual urges. Overwhelmed by her new status, the princess gives in to her desires, engaging in a series of public and intimate encounters with the townspeople and her companion E-chan.