Overnight, a legendary poison doctor and assassin transmigrates into the body of a useless legitimate daughter.
Her father doesn't care for her, her mother doesn't love her, and even her marriage is being used as an ingredient in someone else's elixir.
But who is she? The poison doctor and assassin feared by everyone in the underworld. You may be strong, but one dose of poison will bring you down.
She doesn't believe in love, or even that affection exists in this world. She travels everywhere alone, carrying poison.
But who is this expressionless man following her around?
Can't you stop following me? I don't like you.
That's fine. It's enough that I like you!
The heroine actually has no spiritual power. Fortunately, she is lucky and kind-hearted.