Please recommend a novel with a black-bellied and cold female protagonist.

I recommend to you <<Get Dressed as a Supporting Female Character: System, You've Lost Your Morality>> In this novel, the female protagonist had traveled through various planes after the apocalypse, but in order to complete the mission, the female antagonist had to break down. Therefore, she began to become more and more black-bellied and cold, constantly using various methods to complete the mission. At the same time, she also met some interesting male protagonists. I believe you will like this book! I hope you like this fairy's recommendation. Muah ~😗