In the Yin Dynasty, the country was prosperous and the people were strong, the people lived and worked in peace and contentment, and the emperor was diligent and caring for the people. However, these four handsome young men were forced to walk into a bloody storm caused by the past events. Gratitudes, resentments, long-term love between children, and all the things in the world after the dark clouds are cleared, in addition to lamenting the tricks of fate, it also makes people learn to cherish the people in front of them.