While staying overnight at a hot spring inn with her husband, the wife finds herself receiving a massage beside him after he falls asleep. Though initially uneasy, she agrees when told it will help with their pregnancy efforts, allowing the masseur to touch her buttocks and the area around her slit. Reacting sensitively, she soon feels fingers penetrating deeper inside. Unable to resist his explanation that internal massage is necessary, she accepts the masseur's penis into her body. With her husband lying right beside her, she undergoes intense treatment, ultimately receiving a creampie guaranteed to make her pregnant.