[Transmigration + Divine Healer + Political Scheming + Unhinged Heroine + Falling into Darkness]
To return to the modern world, she followed the System's instructions and spent three whole years humbly currying favor with her biased parents and brothers in the marquis's household.
When the three years were up, her mission to win them over had failed completely. The System abruptly left, and all hope of going home vanished.
Their cold family affection wasn't worth a thing. All the pent-up resentment burst out, and she fell completely into darkness, becoming an unhinged madwoman. If I can't be happy, then no one gets to live in peace!
No one knew she was the young valley lord of the secluded Valley of Mystic Medicine, with silver needles in hand that could save lives or take them.
She had hidden her peerless medical skills and deliberately played weak. Now, with nothing holding her back, she might as well give up: I'm tired. Let's all burn it down!