At a banquet for the Chu family, collateral-clan descendant Chu Zhaoye is falsely accused of practicing demonic arts after touching a forbidden black jade slip. His closest relatives surround him, intent on killing him. His devoted servant, Su Wanzhao, protects him at the cost of her life. As he teeters on the brink of death, the black jade slip, the Heaven-Swallowing Treasure Mirror, awakens and grants him the power to devour life force. But it also brings a backlash that warps his mind.
As he flees, the voice of the jade slip and the whispers of the Chaos Demon Scripture reveal the hidden truth: the Chu family has colluded with the Seven Great Sects, sacrificing living people to maintain the seal on the Guixu. His mother was killed for resisting them. The bloodline he bears, that of the Emperor-Suppressing Bloodline, is both the key to the seal and the offering coveted by the Seven Sects. Su Wanzhao’s Ye Zhao bloodline is his last anchor against the darkness.
Chu Zhaoye grows from an orphan of the wasteland into the Night Emperor, devouring enemies, ferocious beasts, laws, and even a false moon, until he reaches the Deification realm. He faces betrayal, sees through lies, challenges a twisted order, and confronts the threat of Guixu destroying the world.
In the end, he stands beside Su Wanzhao, who has awakened the power of Ye Zhao, and they combine chaos with the fire of purification to venture into the heart of Guixu. Faced with a choice, they assimilate the outer demon’s core, turning the source of world-ending destruction into new life. The price is fragmented memories and ordinary strength. They become humble guardians of the new world, transcending the power of “devouring” with a heart devoted to “protecting.”