Killing Cockroaches In Xianxia For Self-Preservation

Bu Cai, Our Main Character, has died... He thought he would be plunged into eternal darkness, but luckily (or unluckily) he gets a system which tells him he has to bring the demise of different fortuned ones so that he can continue existing. Equipped with his years of reading Xianxia novels and his unique perspective, Will he be able to deal with these pests or will he cease to exist? ------------------------------ Check out my other novel that I'll be focusing on, 'It's Hard Being A Background Character' if you feel like it. Cover is Not Mine. (First story, Don't expect much, suggestions and feedback is appreciated)