Azhi, a young man from the north, is burdened with a twin curse. His shadow leaves his body at midnight and bears all harm for him. In order to continue the national destiny, the empire needs to gather the "Seven Luminous Spiritual Bones" to realize "Eternal Day", and Ah Zhi's Shadow Bone is the key. The imperial princess Jiang Xuemei shoulders the mission to find A Zhi. The fate of the two is intertwined, unfolding an epic about intrigue, freedom and love. In the Ruins of Jishi, Azhi and Shadow escaped from prison, but behind them was the empire's cavalry and conspiracy. As the truth emerges, they discover that the so-called "eternal day" is an illusion at the expense of endless sacrifices.
