A conspiracy, killing everyone...
Song Qingwan changed identities with her sister, and became the Song beauty in the palace for her.
Use blood as a sacrifice, use your body as a guide, and shape yourself into a sharp knife of revenge.
Song Qingwan was just a poor creature who was sacrificed under the imperial power, while Mu Jin was just a handy dog raised by the emperor.
Since those under the imperial power are nothing but ants! That would overturn the chessboard!
"Eunuch Mu Jin, please love me."
"Since you helped me, you can only be from me in the future... Otherwise, I wouldn't mind going down with you to see this hell."
[The female protagonist grows up, is impure, unclean, takes revenge and finally slays the dragon, has CP, the male protagonist is a true eunuch, loves the female mastermind, two-way redemption, hug together for warmth, don't enter if you don't like it]