He is the emperor of Ci who is imprisoned on the dragon chair, struggling in the shadow of poisonous wine and cold pool. When the cavalry of the Northern Song Dynasty crushed the dream of spring in Jinling, Li Yu and his beauty Zhou Ehuang were reduced from the 95-year-old to a prisoner in Bianliang. In the cage of humiliation, he used his blood and tears to pour out the everlasting "Poppy". Using his life as a pen and soaked in the pain of national subjugation, he wrote a swan song of reflection in a cold pond - just like a river of spring water that flows eastward without end.