While on a school trip to Ninjatown, a popular attraction centered around shinobi culture, Ichi Kuno accidentally triggers a mystical ninja trap that transports him to a different time - the Age of the Ninja. In order to return to his own time, he must impersonate a female and gain entry into Kurenai Academy, a school exclusively for kunoichi students. There, he hopes to retrieve a magical manuscript that will send him back home. The task proves more challenging than he anticipated as the other students are far more skilled in stealth and infiltration than he could ever be. Ichi must rely on his own abilities and sheer luck to survive in the midst of a group of alluring kunoichi girls, each of whom would end him if they discovered his true identity.
