When Song Lige sneaked out of the palace to play at the age of thirteen, he fell in love with Mo Yao, who was playing the jade flute under the shade of a big tree. Later, on his birthday, his third brother Song Licheng, who had always doted on him the most, gave Mo Yao as his playmate and as a birthday gift. From then on, Mo Yao and Song Lige were inseparable. That heartbeat becomes more and more intense as we get along with each other day by day. Finally, it becomes difficult to suppress it. Should we choose to let go or muster up the courage to stay together until we grow old? And in this palace organized by desire, who can live in peace for the rest of their lives?