Married woman Tanihara-san (38), who became completely addicted to sex after her first AV shoot, and her husband go on a two-day, one-night trip to a hot spring while he is away on a business trip. As soon as they arrive at the inn, she experiences her first sex toy, has outdoor sex in the open-air bath, and has a nighttime threesome. This is a record of the adulterous trip that awakens the sexual desire of the married woman, who has been stressed out by her husband's infidelity, along with the pleasure of orgasms she had forgotten.