No matter how close the blood relationship is, it is no match for the deep conspiracy of the palace; the three people who were originally innocent cannot go back to their original ways because of their premeditated departure from the palace.
One wrong step, one wrong step...
He was the crown prince of the dynasty, and he was his father's lover. Who is right, who is wrong, who is right, and who is wrong, the boundaries are lost in the entanglement day after day...
"I'm helping you just for my sister."
Where should his emotions go, and how should human ethics face the torture of reality?