Utterly normal middle school student Ittoki Sakuraba is fed up with having to take lessons every day and being monitored by childhood friend Kousatsu. Then one day, a beautiful girl named Tsubaki confesses feelings for him.

Ittoki has suudenly been urged to be come a ninja. After a talk with Tokisada, a ninja feared as the "Demi-god," Ittoki reluctantly agrees. But to get inito the Ninja Academy, Ittoki has to pass the transfer admission exam.