"The only thing I know for sure is that he loves me."
The story of a eunuch and a girl.
He was the rumored illegitimate son of the late emperor. He was killed and became a slave in the palace.
She is the youngest sister of the imperial concubine and the second daughter of the Pei family, but she fell in love with a eunuch.
How to develop this relationship that is not recognized by the world...
Concept: Forbidden love