The System Asks Me to Kill Someone? I'm Scared

Lu Ren, a 29-year-old social worker, encountered the legendary system. But the first task of the system is to kill someone. Lu Ren:? ? ? I'm just an ordinary person, killing people? I'm scared! But he didn't expect that the price for refusing the mission would be to be kicked into a war-torn medieval battlefield. To make matters worse, it seemed that something was wrong with Blue Star. On one side is the man-eating black energy monster, and on the other side is the red-eyed knight warlord. Lu Ren clenched his fists: I don't kill, but I have to live! This is the story of an ordinary person who survives by working hard.