Mako, the proprietress of a long-established inn, is a sexy mature woman with a strong sex drive. She hasn't had sex in a while and is feeling a bit frustrated, so she relieves her sexual desire by masturbating. One day, when the proprietress's frustration reaches its peak, city officials and a real estate agent come to visit. The inn is illegally built, and if things continue as they are, they will be suspended from business. It's too late to rebuild the inn now... After thinking it over, the proprietress comes up with a plan to seduce the two men by using her big breasts, which she is proud of.