In the parallel world "Meow City", Aji, a cowardly civet cat who was abandoned by humans, lived a life of survival in the "Sunshine Lane", a stray cat slum, but lost his home due to the oppression of the gang boss Yinyue, and accidentally saved the seriously injured former aristocratic cat Taipan. In order to save his companions, Aji was forced to enter the restricted area "Dark Night Forest", accidentally touched the guardian stone that maintained the barrier between humans and cats, and heard the prophecy that "Moon Claw appears and the guardianship is restarted." Since then, he formed an adventure team with Snowball, the aristocratic ragdoll cat who longed for freedom. Under the guidance of the mysterious old cat Gray Shadow, he learned the "Moon Claw" stunt, but evaded his mission due to past trauma.
As Silver Moon colludes with the human engineering team in an attempt to seize the guardian stone and destroy the forest to build a playground, the cat world barrier is damaged, humans begin to discover cat groups, partners are separated, and crises are everywhere. With the awakening of the human girl Xiaoman, Aji rescued the kittens in the cage area and finally understood that "real strength is protection." In the end, he united with stray cats and aristocratic cats to form a guardian alliance. In the decisive battle on the night of the lunar eclipse, he used his belief in "human and cat symbiosis" to shatter Silver Moon's hatred, repair the barrier, and establish the "Guardian Council" of the cat world. He realized the transformation from a "weak chicken cat" to a "guardian leader" and ushered in the balance of human and cat symbiosis in Meow City.
