Cats have nine lives. The Ruan family has a daughter named Xi Nuo. She looks like a human but is actually a demon. The demon is full of cultivation and can choose her gender. She chose another one. The world is bound to be in chaos. How can the hatred of a broken tail and the pain of broken bones be easily erased? He changed his name and surname, experienced many vicissitudes of life, and fell into the devil's path. Some people love him, some pity him, some hate him, some hate him, but only one person loves him, deeply and deeply, with a red line on his tail, but he doesn't know when it will turn into ashes. Roses bloom, they cannot last long, they are not tolerated by the world, they are both good and evil, good and evil, right and wrong?