Dark Girl: I Am Killing My Way Through the Apocalypse

A magical yin-yang sun appeared in the sky, ushering in the era of blue star changes! Overnight, demons ran rampant, hundreds of cities fell, and the end of the world came! The surviving humans set up a security agency to protect peace. However, when Jiang Hao traveled through time and became a member of the Security Bureau in the apocalypse. What I saw was scumbags wearing uniforms from the Security Bureau, feeding demons with human flesh and blood, and refining demon elixirs with human internal organs! Collude with demons and massacre humans! Jiang Hao was so angry that he formed a contract with the darkened girl to kill him and turn the world upside down!