Mirror Management Bureau

A mirror reflecting all things in the world appears in the sky, and apart from inanimate objects, the rest are monsters

However, only Yang Yi can obtain these monsters

Because ... ...

He is the sole administrator of the Mirror Management Bureau

Official version

When you gaze into the mirror, the mirror is also gazing back at you

Yang Yi looked up; the mirror in the sky resembled an abyss, and the reflection of himself was slowly climbing up from within it