- In the previous life, Wei Luoning was the eldest daughter of the Wei family and was regarded as a marriage tool. In the end, in order to fulfill her father's official career and her little sister's happiness, she was thrown into the sea of fire. Reborn in her late teens, she possesses the unique knowledge of poison medicine and vows to settle this blood debt. However, the Wei family father and son have long been accustomed to sucking her blood. In the face of her repeated resistance, is it a complete break of family ties, or is it a more sinister plot?