Teenage ninja girl Yumei has gotten used to surviving havoc in Hawaii. On a daily basis, she is assaulted by a blind ninja samurai, an overly talkative bully and an obnoxious, buxom wrestler. And she has boyfriend who might just be the son of a Norse god. After a raid on a clandestine facility full of soulless clones of a classmate, Yumei has to be saved from the cloners' vengeance. Then her friend Junzo falls for a merman, Yumei ends up on a "date"...