In Xinhai City, where memories can be extracted and traded, Ling Su, the top "memory diver", makes a living by sneaking into the consciousness of others. He is calm and efficient, but he has forgotten only his most painful past. A mysterious commission from a giant company brings him into the broken consciousness of a dying scientist - an isolated island in the storm. There, he discovered that what the client was looking for was not a trade secret, but a dangerous truth that could subvert the world. What made him shudder even more was that the broken lighthouse flashing on this island of memory seemed to be trying to illuminate his own past sinking into the sea of oblivion.
