Son of Darkness is the name given to him by those on the path. His movements always come and go like the wind, and at the same time, he also likes to hide in the darkness. No one knows his real name, not even the boss who gave him the task. If one day, you feel that you have offended a certain big shot, you should be careful. Maybe the killer he hired is the Son of Darkness, because the Son of Darkness has never failed.