In 20XX, the "polyandry system" was approved and adopted in Japan. The main clause is that one wife can have up to two husbands. However, as a general rule, sex should only be with one husband. Kaoru is in love with his wife, JULIA, but her other husband, Tooru, is in charge of the sex. Immediately after talking about her love with JULIA, a sexual act unfolds in front of Kaoru. The life of two extremely distorted husbands and one wife soon begins to spin out of gear...