Can you recommend some good transmigration novels? The ending was beautiful, but the process was brutal. Can it be accompanied by a brief introduction?

I recommend "Trash Cultivation Koi Fish", a fantasy romance novel. The female lead was originally a good-for-nothing, but she was accepted as a disciple by the number one immortal cultivator. After her rebirth, she became stronger in the city of the other world, saved the apocalypse, and conquered the vast galaxy. The story had plots such as hunting monsters for treasures, abusing scum to recruit disciples, and so on. The process was very cruel, but the ending was very good. I hope you like this fairy's recommendation. Muah ~😗