In Joy of Life, Yan Bingyun had chained Shen Wan 'er in a room, restricting her freedom. This chain was described as light but as hard as a rock, making it impossible for Shen Wan 'er to escape. Yan Bingyun often came to accompany her, and this relationship was described as " very sultry." Thus, the iron chain was used to restrict Shen Wan 'er's movements.

Joy of Life was holding Cheng Jushu in the iron chain box.
Joy of Life was holding Cheng Jushu in the iron chain box.
Joy of Life was holding Cheng Jushu in the iron chain box.
Joy of Life was holding Cheng Jushu in the iron chain box.
Joy of Life was holding Cheng Jushu in the iron chain box. Cheng Jushu was an eighth-level ace in Northern Qi. He had been sent to assassinate Fan Xian. He was tied up in a large iron box and smuggled into the Imperial City. Cheng Jushu had the characteristic of being extremely strong in the movie. He almost overturned the carriage with just a move.
Joy of Life was holding Cheng Jushu in the iron chain box.
Inside Joy of Life's iron chain box was Northern Qi's Level Eight expert, Cheng Jushu.
What you want to ask might be the scene of Yan Bingyun's imprisonment in Joy of Life. In the novel Joy of Life, Yan Bingyun was imprisoned in the third volume, North Sea Fog, chapter 13," Yan Bingyun in Prison." Yan Bingyun was a spy sent by the Qing Kingdom to Northern Qi. He was captured by Shang Shanhu in Northern Qi. For her own benefit, Eldest Princess Li Yunrui had reached an agreement with Shang Shanhu to hand Yan Bingyun over to Shang Shanhu. Shang Shanhu put Yan Bingyun in prison and tortured him, trying to get him to reveal information about the Qing Kingdom in Northern Qi. Yan Bingyun held fast to his beliefs and didn't reveal any information. In the novel, the plot of Yan Bingyun's imprisonment was an important turning point. It showed Yan Bingyun's loyalty and determination, and also laid the foreshadowing for the subsequent plot development.
Yan Bingyun was one of the characters in the novel Joy of Life. He was the son of Yan Ruohai, the head of the Fourth Bureau of the Qing Inspection Council. He had been sent to Northern Qi as a spy. Yan Bingyun was loyal to the Qing Kingdom and the new Emperor, the Third Prince. In the end, he became the Director of the Overwatch Council. He had always been loyal to his country and was willing to sacrifice for his beliefs. However, regarding Yan Bingyun's ending in the novel, the information provided was not clear. Therefore, based on the search results, it was impossible to determine Yan Bingyun's ending in the novel.
In the novel Joy of Life, Yan Bingyun was imprisoned in the imperial prison and tortured. There were many scars on his neck, which were obviously new skin, indicating that his body had been tortured and healed for a long time. Even though he had suffered severe pain, he had never revealed the intelligence network of the Qing Kingdom and Northern Qi. However, the specific description of Yan Bingyun's injuries was not detailed, so it was impossible to know how serious his injuries were.