I Transmigrated into the Black-and-White Sisters

Two best friends transmigrate at the same time to a prosperous imperial dynasty. Their different identities and circumstances lead to entirely different fates. In the clash between a heroine and a black-hearted schemer, they don't need men to get by, and can each hold their own in another world. Transmigration + Golden Finger + Intelligence and Courage + Wits and Daring + Scheming Male Lead + Inner-Palace Intrigue + Overturning the Power Structure + Bad Ending.