This is a historical fantasy novel that objectively presents (without presupposing any position) the complexity of the Song Dynasty - including the peak culture and economy, as well as the poor and weak politics and military - from the perspective of Yan Xin (the painting spirit born from "Along the River During the Qingming Festival").
The novel deeply ties the fate of Hua Ling to the national destiny of the Song Dynasty, making "traveling through history" no longer a simple matter of watching the scenery, but a grand adventure full of sense of purpose, growth and philosophical speculation. It ensures that under the literary wonders, there is a solid historical skeleton and profound humanistic care.