Well, I have established a world view myself. Introduce me to a novel by OC Ernel Karic
Ernel exchanged souls with his lover Feridian, but Feridian died before they could exchange them back.
In the eyes of everyone, Ernel is dead, but she is still in Feridian's body, and is called by the name of her late lover again and again.
Mission: Everyone is independent and free