Archaeologist Shen Yanyan got a piece of Mayan tortoise shell engraved with runes, and a mysterious deduction device appeared in his mind. With each level of deduction, he can predict the future and tame strange beasts, but he is also getting closer to madness step by step. The female bodyguard Coraline was ordered to protect him. The two went deep into an unknown ancient city on the Silk Road and discovered that those beings regarded as "demons and ghosts" were actually the consciousness guards of ancient alien civilizations. The deduction device is nothing more than an assessment device for screening "divine mentors". When the ninth-level deduction is opened, Silent Yan must choose between "becoming a god" and "being a human being" - some powers, once accepted, will no longer be human.