The Ninja Cats ( (ねこ) の忍者, Neko no Ninja?) are entities of the Otherside that targeted Akari Seto during File 7: Attack of the Ninja Cats.


Two-legged cats that are about fifty to sixty centimeters tall. They wear tattered black clothes and carry around katana-like jagged metal blades in the manga only one of them is armed with an actual katana while the other is armed with a katana-like jagged metal blade. However in their true form they look like ordinary cats standing on two legs.


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