In an attempt to attract frustrated female customers with confidential rich services due to requests for self-restraint in the sixth wave of the spread of the virus infection, secret piggybacking ideas are booming in the hot spring industry. The idea of the 60-year-old proprietress of a hot spring inn in Tohoku is the brainchild of a membership system "Cuckold Night ● I Plan" where you can enjoy an affair without aftermath with male customers and beautiful boys and young people who are guaranteed their identities, and "Sex Appeal Plan" where single women and married woman mature women accept assault experience shooting.