I read a novel and i forgot its name.now i cant remember it so can anyone who know this can tell me. Plot:-novel is female protagonist.after she and her family has been killled she reincarnated in a lower world but she forgot her past.in present her parents are a human from upper world and a ghost prince.Mc is demon king reincarnation whose half soul is with female lead.both hero and mc have body constitution of both light and darkness. Can anyone tell me which novel?