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!
It's not just her.
Nicht nur sie.
No solo es ella.
No solo falta ella.
Pas seulement Asuka,
Non manca solo lei,
Não só ela.
Не только её нет.