The Immortal Body Sweeps Through the Doomsday: It's so Cool

[Highlights of this book: Systemless, not brainless. The protagonist is decisive in killing, and the villain's IQ is online. ] After the disaster, the world was in chaos. Young Cui Shengli was stabbed in the back by his former good brothers and his sister was killed one after another on his way to the civilized reconstruction area, so he came to Fuyuan City alone. The innocent and simple boy now understands the rules of survival in troubled times! In this troubled world, I will stick to the truth I believe in! And will defend it to the end!