The story centers around Takahiro Mizuno, a student at the Academy of chivalry, which he entered to become a knight . Takahiro own, without anyone's help, was able to enter into this upscale academy, and all because he was the best in the jousting tournament among juniors in the country. Nevertheless, izfor injuries received in the finals of the tournament itself, it can not participate in the joust of this academy as a knight. Then he decided to become an assistant of one of the knights of the girls, who are also trained in this same academy. Whether it will turn out with him?