She is the true love of Lu Bu. Though she is born with a natural beauty, she dislikes people who fall in love with others based on their appearance. Unlike most girls, who fall for men with power and position, Diao Chan dreams of finding a man who could give her safety. She falls into depression after her father fell in a comatose state, but remains strong and cheerful in front of her friends. When her father finally awakes from his coma, Diao Chan finally cheer up for real. After she was framed to have collected fake money coins from the students, she sells her house to pay her debts and becomes roommates with best friend Xiao Qiao. Hua Tuo helps Cao Cao invent a potion to change Diao Chan's personality under Principal Wang's request. While it was still under production, it turned her into an aggressive character. However, once he makes a proper brew, she becomes more cheerful and optimistic. And, under the influence of the potion, she confesses to Guan Yu and they become a loving couple. In 23rd Round, she begins to suffer side effects from drinking a warm Bian Hen Da (變很大), which induces her face with a red mark and later throws her into a deadly coma. Lu Bu manages to cure her with Zhen Cha Jing, thus removes all effects of Bian Hen Da. Though she is supposedly cured, Ah Xiang suspects that the potion may have become permanent in her body. After Lu Bu rescued her from a kidnapping incident, she falls in love with him instantly and the two begin dating after he transfers to her school. Their relationship falls to pieces when she finds out that Lu Bu is the adopted son of Dong Zhuo and that he was sent to rescue her as part of his father's plan to take over East Han Academy. Diao Chan is also the figure of Guan Yu's crush. And though they have shown attractions to each other, Diao Chan prefers to think of him as a friend. During Lu Bu's absence, the two become increasingly close to each other. Then, Diao Chan confirms that he has become an important part of her life, although she has yet to figure out what that part might be. While under the influence of a personality changing potion, Diao Chan confesses to Guan Yu and they become a couple. After she is "cured" of Bian Hen Da's side effects, she still chooses Guan Yu over Lu Bu. When she learned about her father's unexpected death and knowing the possible death that could befall Guan Yu, Diao Chan decides to participate in the battle.