The shinobi receive a mysterious message delivered by arrow from an unknown, and potentially deadly, assailiant who lurks in the shadows. The letter lures them to an empty spa resort, where they'll begin a trial like they've never faced before. But first, it's time for everyone to have a squirt gun fight in skimpy swimsuits!
We're going, aren't we, Yumi-chan?
Wir gehen hin, oder, Yumi?
Vamos a ir, ¿verdad, Yumi-chan?
Vamos a ir, ¿verdad, Yumi-chan?
On y va, hein, Yumi ?
Ci andiamo, vero, Yumi-chan?
Nós vamos, não vamos, Yumi-chan?!
Мы же поедем туда, Юми?