Not Too Cold as a Killer

Zhao Shian traveled to a different world as a death row prisoner and was sent to a place called Sin City. Death row inmates from all over the country were held there, and they staged a battle royale inside. Zhao Shian relied on the system to successfully escape from prison and joined the killer organization. It's just that he's a bit unscrupulous as a killer. He sometimes kills his employer and sometimes his target, all depending on his mood. He once assassinated someone he shouldn't have killed and was hunted by all parties. In the end, he unexpectedly recognized his relatives and joined the Xuanyi Guard. One day, his family was accused of treason, and he resolutely rose up. Since he said that I was treason, I will show it to you.