After Death Spectator Mode: Birthday and Death Ceremony

What happens when a person dies? My birthday turned into my death anniversary. I, Lin Yuan, died in the extremely dark time of 2200, but I "lived" in another form and started the afterlife viewing mode. Lin Yuan could only watch the world he lived in, but he could no longer touch the people he loved. Looking down at the earth, Lin Yuan discovered that his death in Jiyin was a carefully planned sacrifice, and that he had walked in by mistake. What is going on in this conspiracy that interweaves cutting-edge technology and ancient forbidden arts...