Sun Bolun, Chen Zhuoxuan. "Gucheng" is a character song in the costume TV series "Chen Qingling", sung by Sun Bolun and Chen Zhuoxuan. It is included in the music album "Chen Qingling Chinese Style Music Album" which was released on July 8, 2019. The song Gucheng describes Looking back on the past, the feelings of endless regret reveal the main line of the story of the Uicheng group, grudges and hatred. I heard that the whole song is quite sad, describing the tone of looking back on the past with endless regret. The lyrics also depict an infatuated man and woman who cannot be together due to various factors and are separated. We can only recall the happy times in the past with the help of memories, but then the years go by, hopes become empty, and everything becomes a dream. The ending is somewhat disappointing, but it is also a metaphor for the emotions in real life. The joys and sorrows of the Yicheng group are intertwined. If the general situation is solved, it can be turned into a direct short story. According to the plot of the TV series "Chen Qing Ling", in the Yicheng chapter, the surviving Ah Jing persists in using a stick Beating the road, unable to see or speak, but guarding Yicheng for eight years for Xiao Xingchen's unjust injustice. It would also be good if the previously known stories were fleshed out more, with more details on the love and feud between Xue Yang, Xiao Xingchen and Song Lan, and the short story after Xue Yang's death was expanded and made independent.