She was originally the daughter of a traveling doctor who was forcibly taken into the house as a concubine due to a misdiagnosis. He does not fight for favor or form cliques. He only plants exotic flowers and herbs in the backyard medicine garden, and uses aromatherapy techniques to quietly control his mistress's dreams and induce hysteria in his son-in-law. When the whole family fell into mad suspicion, she had ironclad evidence that the head of the family was collaborating with the enemy. On the night of burning incense in the ancestral hall, she turned the entire house into a chessboard for her revenge - the gentle knife, the most deadly.
