Mirror Authority summary:

A mirror appeared in the sky that reflected everything in the world. Except for inanimate objects, the rest were monsters. However, only Yang Yi can see these monsters. Because He is the Mirror Authority, the only administrator.formal edition: When you stare at the mirror, the mirror is also staring at you. Yang Yi raised his head, the mirror in the air was like an abyss, and the self in the mirror was climbing up a little bit from inside.