Xiao Fan, the protagonist whose destiny was predicted in the prophecy, shattered the void after defeating the World-Destroying Demon Lord and ascended to the fairy world. What he left to the world was the legend of heroes and the devastated land. Lin Kezhou, a mortal who lost everything in the final battle, struggled on the ruins and survived by scavenging. One day, he accidentally picked up the core of the Demon Lord, which was abandoned by the hero Xiao Fan as the "source of evil". He discovered that this "magic energy" that was despised by the world was actually the only force that could repair this broken world and fight against the new monsters that changed due to the proliferation of "holy light". In order to survive and protect the remaining warmth around him, Lin Kezhou was forced to embark on a road of "scavenging" that ran counter to the "light". When everyone regards him as the new devil, he can only go retrograde in the darkness and become the only guardian of this wasteland.
