Reverie

he was an astronaut and he kinda partly fell into a black hole and it destroyed some of him so everyone thought he would die but then he found out that he could get bionic replacements for the part of him that was destroyed and he didnt think he could pay for it but then an anonymous person donated money for it so he got it but then it turned out that the bionic stuff was possessed by the demon that lived in the black hole and it tried to control his mind

he's like the perfect example of the cliche mary sue that you shouldnt make :D

and the holes in his plotline are bigger than black holes-