First wife of Zu An. He's loved her at first sight, and uses every moment together to express his love. He was treated like garbage at first, barely even accepting their relationship outside of the home. His glib tongue did nothing to improve her opinion of him, and every time his image improved he would ruin it by saying a bit too much. In the Ursae Dungeon the two grew closer together as he constantly put his life on the line to protect her, eventually having sex together in order to repair her cultivation.
Their relationship later improves when Zu An learns of Chu Chuyan's backlash from advancing too fast in her cultivation. She allowed Zu An treat her using acupuncture with her clothes off. Furthermore, she lent him the Chu Clan's Snowflake Sword manual, the clan's most important technique, after Chen Xuan tried to assassinate him. After her backlash worsens to the point where she was on the brink of death, due to jealousy from Qiu Honglei's relationship with Zu An, Zu An rescues her by having sex with her once again.
Chu Chuyan later tries to cook for Zu An, but fails due to her inexperience. Despite her failure at cooking, it causes them to become more intimate as she was willing to be hugged by Zu An after she failed to break free from his hug and was reluctant to use more strength. She escapes after discovering that Cheng Shouping was watching them and Zu An visits her with the excuse that they should continue detoxifying her poison.
They proceed to have sex and Chu Chuyan realizes that she was already fully cured. However, she admits that she enjoys their sessions and then allows him to stay in her room overnight. The next time he visits her, she gives him the key to her room so that he wouldn't have to sneak in through the window every night.
When Chu Zhongtian is arrested and the clan is in danger, Chu Chuyan was willing to entrust the real account book and the safety of her mother and sister to Zu An during her trip to capital. In the Ursae Dungeon , both Snow and Zu An grew closer to each other after facing numerous life-and-death situations.
