A newlywed couple visits a long-established hot spring inn known as "fertility hot spring." Nakai's Misono welcomes them and sets her sights on the honeymoon couple. While the wife is away at the hot spring, Misono quietly makes her move. Pretending to be modest, she slowly makes her way into the man's heart, testing his reason with lewd words and a dangerous distance! Gradually, he is engulfed by Misono's clever seduction...raw creampie sex in the guest room, creampie sex in the hot spring, sex where she continues to whisper erotic words while the wife is having sex. The maid sucks out all of the sperm so that no sperm is left for the wife...