Ninja trainee Shinobu is sent on a mission by her pervy headmaster to collect underwear from high school girls! Her first target? Kaede Shiranui! Then, Shinobu takes Kaede on a crazy adventure to the Valley of the Ninja to meet her Head Master! And just when things couldn't get any weirder, the rainy weather drives bored ninjas into looking for the Loch Ness Monster in their pond... only to find an Onsokumaru-eating crocodile instead!