「You're supposed to be a dom, so why do you want to be dominated?」
This world has two dynamics: Doms, ones who wants to dominate others, and Subs, ones who want to be dominated. Hating subs because of past events, Kei has lived his whole life without ever doubting his status as a Dom. One day, however, he locks eyes with Minato, and starts feeling a way he's never felt before. Minato reveals to Kei that he is indeed a Sub, which he refuses to believe. Yet, he's completely absorbed in the pleasureful feeling of being dominated...