Lin Xueer's home is in hell, but she is an angel, because her father and mother live in heaven, but they leave her in hell, because they understand that only in this way can Xueer survive. This article takes Lin Xueer's search for her parents as the background, and the relationship between her and Yilai as a clue, and Fei's destruction from it, as well as the appearance of the mysterious master of heaven and the unexpected troubles of the master of heaven. It tells the twists and turns of an angel living in hell.