Even though we are only a formal couple, are we really going to do this...? ──Hina, an office lady, was supposed to reach the goal of marriage hunting, but she ran away at the last meeting. Then, a man who was in the private room next to her at a restaurant suddenly asked her if he could play her fiance. Just when I thought I had managed to get out of the situation, I was approached by someone who asked me, Do you really want to get married?'' But this might be a chance to start over with your marriage...!? Fill out the marriage registration and submit it.'' Whether you like it or not depends on the trial period. I'll make you fall in love with me for real.'' - A contract marriage and doting cohabitation life with handsome entrepreneur Minato Kurosaki begins!