In this world, the positions of men and women and the concept of chastity are reversed. I was working hard as a husband to my working wife Hikari. One day, Kana liked me on the street and let me into her house. Hikari and Kana talked and decided on a rule that "I will belong to the one who feels good". I couldn't choose one when both of them felt good...! That's what I thought, but before I knew it, I was caught up in a strange life together where both of them asked for my dick many times...