I am a devil in a strange world

He was the main character yet everyone else appeared more important than he was. What was this story he was assigned to? In a futuristic world of magic and gadgets, he emerged from the depths which held no value in comparison to the great ones and the higher ups. The world was beautiful and he was considered one of the many blotches that tainted its beauty. The day he was killed, a cleansing was manifested. He, however, reincarnates into the real world - Earth. Reborn from a world of fantasy instigated by ink into the world of humans, he faces no better luck than his previous life in a book. Unfortunately for him, in this new life he is struck with an illness that makes his skin look red. People call him the \