Kunoichi no Ichi!

On a school trip to shinobi-themed Ninjatown, a young man named Ichi Kuno accidentally springs a mystical ninja trap which sends him back to the Age of the Ninja. Having no other path, he must pose as a girl and infiltrate an Kurenai Academy, a school of kunoichi students, to retrieve a mystical scroll that can return him to the future. But when...