Ten years ago, Su Wayan, a medical girl from Xuanhu Pavilion, had half of her face cut off because her father was involved in the case of the legitimate son of the Hou Mansion seizing power, and was imprisoned in Yizhuang to keep vigil. In the pile of corpses, she secretly studied the "Medical Sutra of Rebirth" banned by the Hou family, and became a "living dead" who could control corpses and use poison as a blade. Ten years later, at the full-moon banquet of the eldest grandson of the Hou Mansion, eighteen blood coffins engraved with the birth date of the Hou Mansion floated from the moat. Su Huanyan sat on the coffin with her father's bones in her arms, and used seven baby Gu as a "betrothal gift" to force the Hou Mansion to open the underground palace of the ancestral hall - she wanted the person who harmed her father to "replace his bones" with flesh and blood.
Pei Mingzhao, the second son of the Hou family, appears to be an idle noble son, but is actually the commander of the secret guard camp. Ten years ago, he imprisoned Su Wangyan in Yizhuang with a "leave letter" under the name of protection, but little did he know that she had already transformed into the most dangerous avenger in the mountain of corpses and sea of blood.
In the house of the Hou Mansion, Mrs. Hou used the "Blood Heir Gu" to control the men. The young lady harbored murderous intentions but was infected with the Heart-Corrupting Gu. Even Su Huanyan's junior brother broke into the situation wearing a "Poison Bodhisattva" mask. Su Wangyan used the corpse as a blade to let the wronged soul "open his mouth" to reveal the secret, and used poisonous poison to force everyone to find a weakness; Pei Mingzhao used her hand to lure the snake out of the hole, trying to use the blood edict to stir up the court.
When the thirty innocent corpses of Yizhuang came out of blood, and when the corpse of the former prince under the moat was rediscovered, Su Huanyan and Pei Mingzhao became each other's pawns and each other's antidote in the bloody puzzle. She wants to be buried with the marquis, and he wants to dominate the world, but under the noose of the symbiosis Gu, he has to hand over his back to the other party - in this game, who can become the final chess player in the mountain of blood and corpses in the rich family's deep house?
