Yun Yan followed Chu Shiyuan for nearly twenty years, supporting her all the way through the light of swords and shadows. However, after Chu Shiyuan came to the throne, his power was harvested and he was imprisoned in the palace. Originally, she thought that Chu Shiyuan was afraid of her and the [Thousand Machines] in his hand. But she didn't want Chu Shiyuan to say that he liked her. Yun Yan only thought that this was Chu Shiyuan's trick. She didn't care. It was just that Chu Shiyuan had promised her to let Shen Xing'an's son Shen Qianyu go, but she found out that Chu Shiyuan was deceiving her. When questioning Chu Shiyuan, Chu Shiyuan went back on his words and had a tough attitude not to spare Shen Qianyu's life. He also said that he would marry Yun Yan as his queen. Yun Yan thought it was ridiculous. She did not believe that Chu Shiyuan fell in love with her. She also felt that Chu Shiyuan had gotten everything she wanted and she was of no use anymore, so she decided to leave the palace.
Yun Yan gave up everything and went into the prison alone to rescue Shen Qianyu. She didn't tell anyone, left nothing behind, and left with Shen Qianyu.
The sword hidden beside Chu Shiyuan turned into a wanted criminal wandering the world.
Chu Shiyuan saw that one or two of the subordinates sent out to arrest people never returned. He did not believe in evil, and then went to arrest people himself.
Intention: Love grows over time and redeems each other