On the night when Langgan's cavalry crushed the moonlight of Yunzhu, Qingyan watched his homeland turn to ashes with his own eyes.
She is the last princess of Yunzhu, but she has become a prisoner of the enemy who destroyed the country. He treated her tenderly, granted her honor and favor, and the bright and upright look in his eyes was very much like before.
Jing Yao never knew that this meek and quiet woman beside him hid such bone-gnawing hatred. He only regarded her as a duckweed in troubled times, and wanted to protect her stability for the rest of her life, but he didn't know that every time she smiled at him, she was secretly sharpening the knife of revenge.
The deep palace is like a chess game, and every step is startling. Qingyan was dormant beside him, pretending to be happy while collecting the truth about the country's destruction - she gradually discovered that there seemed to be a deeper conspiracy behind this murder, and the "justice" in Jing Yao's eyes might have been a carefully crafted scam from the beginning.
When the truth is revealed like peeling off a cocoon, on one side there is a blood feud, on the other side there are complex emotions that arise from getting along day and night, how should Qingyan choose? And when Jing Yao learns that his hands have been stained with the blood of innocents, how will he face the woman he wants to protect, but has already been pushed into the abyss by his own hands?
Above the ashes, love and hate intertwined, and a battle about revenge and redemption was quietly unfolding deep within the palace walls.