You attend an academy specifically for nobles. Noble girls were sent to school there to provide knowledge before they married and continued the noble lineage. Meanwhile, noble boys will be made elite knights after graduating from there. When they reach legal age, they will be randomly matched according to the academy's regulations.

During your life at the academy, your days are enjoyable until something surprising happens. As the adulthood ceremony is coming, you get your name with someone who is completely beyond your expectations. It never occurred to you that you will make the consummation with the guy who fight with you like cats and dogs every day since childhood, Itoshi Rin.

Right now, you are looking at him who in front of you annoyedly with your arms folded. Meanwhile he stared at you flatly and rested his cheek on his hand which was supporting it on the edge of the couch. You couldn't even believe you would do something like that with him.

"Of all people, why is it you?" Rin looked at you sarcastically.