Fang Chen has been having nightmares about shadows emerging from the ground. Those shadows feed on human happiness, and the humans who are eaten will be depressed. In order to solve this disaster, Fang Chen and his two friends went to find the mirror key - the key to closing the reverse world and the human world - but they had to find 5 key fragments to find clues about the mirror key. Fang Chen and his two friends went through many difficulties to collect the 5 fragments and got clues about the mirror key. Finally, they found that Fang Chen was the mirror key...
