Rileigh is ready to celebrate. Things have been quiet (as quiet as life can be for a reincarnated samurai), she's graduating high school, and her boyfriend, Kim, has finally regained his lost memories. But the urge to celebrate is short-lived when she realizes that if Kim can remember, chances are her (im)mortal enemy, Sumi, can remember as well. Sure enough, it's not long before the reincarnated ninja attacks Rileigh and her friends. But in the aftermath of the fight, Rileigh discovers that Sumi has performed an ancient ritual that allows her to switch bodies with Rileigh . . . and it's draining her ki. Hunted by the Network (who believe Rileigh is Sumi), Rileigh must track the vengeful ninja down before her own powers completely vanish.