剧情：A comedy starring sexy actress unit "3boins" that gather popularity of mature girlfriends. One heart-warming one where three persons "personality was demonstrated from the three sisters" set in a lonely hot-spring inn ryokan, including a standard bathing scene, aiming for reconstruction and encouraging excessive service. The second daughter Mayumi (Kayama) returned home for the first time in 20 years when the ryokan who broke up with her eldest daughter Junko (Iori) and three women · Rie (Orihara) falls into a slump in management after succeeding parents who passed away While awkward air flows between the three sisters who have arranged, a male guest with a momentum comes and a riot occurs.