The prequel to the legendary ancient novel "Drunken Linglong", the world is unified, the twins are inseparable, I will exchange my prosperity for your lifelong joy. She is a royal princess with a mysterious background, a enchanting beauty in the Nine Layers of the Deep Palace. He, the young emperor of the Yong Dynasty, was also the light she prayed for in the darkness of the Xuan Pagoda for three thousand days and nights. Walking on the bloody blade, just for a promise from the past! The tips of her fingers were stained with blood and the bottom of her sleeves were withered, but all she wanted was his smile in the spring breeze and that she was safe and sound. Are he and her destined to be just a business trip far away from each other?