Married Woman's Night Visit Festival - The hidden sexual desire of a married woman who was violated by lewd customs

It's been a few years since I got married. The Shiraki couple arrive at a hot spring inn that is well known for its Kiho no Yu, saying it's about time for their children. The open-air bath relieves fatigue, but my husband, who is lame, falls asleep quickly due to the fatigue of driving. Yuko, who is not satisfied with her baby trip, is in agony and goes to the floor... Late at night, someone else's footsteps echoed faintly in a room where they were sleeping. Yuko suddenly woke up and saw a man wearing a tengu mask. Surprisingly, the man tells Yuko that this is a festival, and even though her husband is next to her, she starts to play with her body...