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!
Hey, hey, Ryobi-chan!
Hey, Ryobi!
Oye, Ryobi-chan.
Oye, Ryobi-chan.
Tu sais quoi, Ryôbi ?
Ehi, ehi, Ryobi-chan!
Ei, Ryobi-chan!
Эй, эй, Рёби!