She was originally the daughter of the head of the imperial hospital. She knew all kinds of herbs but didn't understand people's hearts. He entered the house as a side chamber, not to compete for favor, but to find out the truth behind his mother's sudden death. Everyone in the house drank the medicine she cooked, but they didn't know that the residue of the medicine contained clues to old cases. When her mistress became violently ill, her legitimate son went crazy, and her husband had nightmares every night, she was shocked to realize that she was never the only one poisoned.
