Etotama: Nyankyaku Banrai

The long conflict between Nya-tan and Chu-tan has finally ended, allowing the twelve zodiac girls to live in peace. That calm is interrupted by the arrival of an unknown zodiac girl named Na-tan, whose pure and straightforward nature immediately wins Nya-tan over. The others, however, have no idea where she came from or why she has appeared now.

Then Chu-tan returns with a far more troubling warning: an ancient seal has been broken, and something that slept beneath it is beginning to awaken. The mystery of Na-tan's identity becomes tied to a new disaster, forcing the zodiac girls to face an old power that cannot be settled through their usual rivalries. To protect the peace they fought for, they must discover who Na-tan really is and what the broken seal has unleashed.