My Sister Was Killed, I Joined the Monsters to Declare War on the World

A mutation occurred where Chu Qing was, and the city quickly fell, leaving only him and his sister struggling to hold on. Chu Qing was unfortunately infected during an outing. Taking advantage of the last few days when he was still conscious, he decided to risk everything, lead his sister through the "Purgatory City" full of monsters, and desperately deliver her to the survivor base. But just when he thought his sister could live well with his share. Rows of hollow muzzles roared angrily. The familiar figure fell in front of him. Chu Qing was stunned. At the same time, the mutation on his body finally began, and countless monsters showed fearful expressions. A monster that makes monsters fear was born...