Overworked office drone Lin Zhe gets struck by lightning after working late. He doesn't transmigrate; he's dragged into the Shanhai Labyrinth. Of the twelve chosen summoners, only the last one alive can escape with Zhulong, the legendary beast of the Classic of Mountains and Seas. The thousand-year pact is about to expire, the Demon King's scales are awakening across the country, and the demon beasts' infiltration keeps escalating. Deep in a mine in the Taihang Mountains, a terrestrial wyrm has a Demon King scale embedded in its body. Beneath a Kunlun glacier, the Demon King's core mind is incubating a perfect human body. With his three-marked Thunder Wolf, Lin Zhe fights from the mines all the way to the Kunlun underground palace. He devours the Demon King's essence with his left hand and grips a bone token left by the strongest summoner of a thousand years ago in his right. At the very moment Zhulong is about to vanish, he stands before it with everyone else and holds his pendant token in his palm. “Four scales, four people. You won't die. You'll just live on in another form.”