In the deep mountains of the border, poisonous vines are rampant. The "Yinvine Grass" guarded by the Chen family for generations is the only secret treasure that can break the poisonous fog and check and balance the poisonous vine cult. It is also the treasure that the careerist Lin Wanshan has coveted for half his life.
A well-planned betrayal, a brutal massacre, the Chen family's old house was burned down, the snake cave became a river of blood, and the daughter Chen Qiqi escaped alive with the blood-stained vine grass and plum blossom wooden sign, and escaped from the severe pain of the poisonous vine that corroded the bones.
When Hanxi met her old friend and the Black Stone Village was broken, she realized that the disaster at the Snake Cave was just the beginning of the conspiracy, and that Lin Wanshan's ambition had already spread to the entire border. The purple light of the plum blossom wooden sign, the secret power of the vine-inducing grass, and the legacy of the Chen family's ancestors are what she relies on for revenge, and they are also the fate she cannot escape.
When the poisonous vines cling to her bones, when the pursuers are everywhere, and when the conspiracy is revealed layer by layer, she can only use the knife as an edge and the blood as an oath to tear a bloody path on the edge of life and death - not only to avenge the clan, but also to break the situation and uncover the secret of the centuries-old entanglement between the Chen family and the vine poison sect.
