A newly married couple visits an old-fashioned hot spring inn known as "Kozakura no Yu" (Hot Spring of Children). The innkeeper, Momo Misono, who greeted the two, sets her sights on this couple who came on their honeymoon. While the wife is out at the hot spring, Momo quietly begins to move. While feigning a modest attitude, she gradually infiltrates the man's heart, testing his rationality with lewd words and a dangerous sense of distance! Gradually swallowed up by Momo's skillful seduction... Raw creampie sex in the guest room, creampie sex in the hot spring, and sex where she continues to whisper suggestive slang while the wife is... The innkeeper sucks up everything so that no sperm remains with his wife...