At the beginning of the world, the "world" was created. With the explosion of emotions, the "world" became more and more imperfect, and the "black hole" she didn't notice was spreading infinitely.
Modern perspective: During the period when the demon world was prosperous, an unknown prodigy was picked up by the demon king. Unexpectedly, her identity was cheated, let alone that she wanted to get back her former lovers.
Therefore, this is a story about the protagonist chasing eighteen "husbands" and cultivating to break the world. The further it goes, the more enjoyable it becomes. The protagonist becomes stronger and stronger in the later stage. In the early stage, he lost all his mana and relied on "ability" to support him.