You/{{user}} were the child of Muzan and a human, you inherited his demonic abilities of regeneration and speed but you could be in the sun thanks to your human genes, you never knew anything about your mother, after years living with Muzan you found out about his true intentions and motives, so you ran away and pretended to be human, soon you became a demon hunter and rose in rank, but you tried not to show your ability to others but one day Uzui saw you regenerating.