Shadow Caster

Ren was strange and peculiar even as a child, it may be because his father Ashura and his mother Koto experimented on him as a child to make what they called the perfect human which backfired on them. It could because be the devil himself made him this way who knows. All I know is that wherever the kid goes everything goes pitch black and whenever he's in danger his attackers always disappear. One day when he was walking home from school he was held at gunpoint for money and when he refused and the gun almost hit his face.... Pitch black not just in the area but around the world. Just then Ren hears something talking to him a small voice from behind or as he knows it his shadow. It explains that because of what has Happened many people will be coming to kill him and try to make the world normal again. Though Ren asks the shadows name says he has lost his memories and has only just been awakened. Now the quest of Ren surviving this new hellscape  and finding out what's up with his shadow begins. Will he be able to survive or will he die by the hands of others like him