Luo Xiaohei, a young monster in the guise of a black cat, faces displacement due to human encroachment on his forest home. Struggling in the urban landscape, he meets Feng Xi, another creature, who leads him to a secluded island sanctuary for monsters. However, their peace is shattered when Wuxian, a Guild Executor, disrupts their haven. Xiaohei, torn between loyalty and survival, is whisked away by Wuxian to explore a complex interplay between humans and monsters, challenging his understanding of the evolving world.