Everyone thinks that the Xianmen Demon Suppression Tower is a purgatory where demons are imprisoned. The deeper the tower is, the more ferocious the demons are. It wasn't until his disciple Lin Qingxian was ordered to investigate the unusual movements in the tower that he discovered the scam that had lasted for thousands of years - the so-called "devil" in the tower was actually the guardian of the seal of the ancient evil god.
She met Xiao Yeyu, a swordsman in white clothes stained with blood, on the first floor. Not only was he not evil, but he tried his best to repair the loose seal. The two of them went down together, and illusions, poisonous miasmas, and puppets followed one after another. The conspiracy of the immortal sect's senior officials to tamper with the classics and be corrupted by evil gods gradually emerged. Lin Qingxian even discovered that his missing mother was the leader of the guardians.
When the evil god is about to break the seal, the immortal sect becomes an accomplice. This pair of boys and girls, who are difficult to distinguish between good and evil, can only hold swords against their former masters, use flesh and blood to reopen the seal and reverse the situation.