In this world, the positions of men and women and the idea of chastity are reversed. I was working hard at housework as a husband of my wife, Hikari, who works every day. One day, Kana likes it on the side of the road and lets it into her house. Hikari and Kana discuss and decide to have sex with Kana, deciding on the rule of "becoming the one who feels good". Both feel good, but I can't choose one or the other...! I thought so, but when I noticed it, I was involved in a strange communal life where I was asked for a many times by two people ...