Xiao Cheng, a modern-day cat lover, accidentally travels back to ancient times because of a luminous pearl. To her surprise, her two beloved cats transform into a cold and aloof emperor and an adorable, pampered imperial consort, while retaining all their feline habits. Reduced to a palace maid in the Laundry Bureau, she repeatedly falls victim to schemes and plots orchestrated by the Empress Dowager and the Empress. Armed with her modern-day ingenuity, Xiao Cheng joins forces with the Cat Emperor and Cat Consort to expose corruption and unravel conspiracies involving spies and poison. Together, they rally an army of palace cats to fight against court intrigue. But unexpectedly, more and more modern-day cats begin traveling through time one after another.