[One true pairing] + [strong allies] + [seizing power]
When she opened her eyes, a master of both modern Chinese and Western medicine had become the legitimate daughter of the Imperial Physician's residence, soon to have her martial arts crippled. Looking at the other soul gazing back at her in the mirror, she smiled. “Little sister, want to do something big?”
At her scumbag father's promotion banquet, the legitimate daughter, who should have had her martial arts crippled, abruptly knocked away the poisoned wine.
At her auntie's birthday banquet, the mistress of the household, who should have been gravely ill, attended in high spirits.
At her half-sister's coming-of-age ceremony, the legitimate daughter, who should have embarrassed herself, dazzled everyone with a sword dance...
“Doesn't Father love watching a good show?” She twirled a silver needle. “Your daughter will put on a real performance for you.”
(Two female leads sharing one body, masters of both medicine and poison, a satisfying tale of taking down scumbags)