Pei Yu was trapped deep in the ruins on the coast of the East China Sea, with the roaring remnant souls of sea beasts behind him, and the wings on his chest were as hot as a soldering iron. Unable to find an exit before sunset, he will be trapped here forever by Jingwei's obsession. He unexpectedly discovered that he could understand the whispers of every piece of rubble in the ruins, and could draw out the faint light from the feathers to illuminate the way forward - but what exactly is this power? At the same time, the ferocious beast in the Classic of Mountains and Seas was breaking free of its seal, and the feather in Pei Yu's hand turned out to be the key. He can either harness this power or become a sacrifice for the seal.