Li Yueling, the princess of the Tang Dynasty, once fought against the demons side by side with her beloved, but both died at the claws of the demons. A ray of remnant soul traveled to another world. Under the guidance of Li Chunfeng, she read Taoist classics and finally found her own way of cultivation. In the long river of time, she refined herself to the realm of spiritual immortality. Until he met six-year-old Su Jingheng, his eyes overlapped with those of his former lover - it was him, back. She swore an oath to the law of heaven, made a marriage contract in eighteen years, and waited for him to grow up.
Eighteen years passed by in a blink of an eye, and she showed up to recognize him and teach him the Taoism. Su Jingheng followed her into the supernatural world. After gradually mastering Taoism, he joined the Secret Service and traveled around the world to deal with strange phenomena caused by demons. However, the cracks in the space expanded day by day, eventually forming a giant gate connecting the two worlds, and the demon army surged in.
Su Jingheng led his team to go deep into a different space to kill demons. When the battle situation was slightly stable, he and Li Yueling strayed into the unstable space, encountered peerless monsters, and were forced to escape into the depths. When he opened his eyes again, he returned to the Tang Dynasty that Li Yueling had experienced firsthand - at that time, the demons first came, and the motherland was still resisting with blood. This time, with a thousand years of memory and spiritual power, can she rewrite the ending of her lover's death in battle? And what kind of reversal storm will Su Jingheng, who comes with future knowledge, set off in this fateful battle?
