There is a taboo between the two races, and a war is about to break out. They must sacrifice themselves in exchange for peace in the three realms. The God of Protection goes to the realm of reincarnation, erases the memory of the past life, becomes a mortal, and waits for thousands of years to become a demon-blood clan, just to find the lost you. Are you a demon? Is it God? Or an ordinary human being?
Concept: Magical, novel