Xiao Tao Zi used to work in a villa in Hu Jia, but because the owner of the villa died, Xiao Tao Zi was suspected to be the murderer and was taken away by the police station. Although she was finally cleared of suspicion, the Hujia people no longer needed her. In this way, Xiao Tao Zi was left by Sue to help her with the case. Sue is very kind to Xiao Taozi, and Xiao Taozi is willing to do anything for Sue. Many netizens speculated that Xiao Tao was Sue's long-lost sister. So, is Xiao Tao Zi one of the beautiful women in cheongsam?

Momo in the play is not Sue's sister. Her real name is Zhao. Her father used to be a teacher, so Momo can read. Later, when something went wrong at home, she went to a rich family as a maid. Xiao Taozi used to work as a housekeeper at Sue's girlfriend's house, but she was driven away because the police suspected that she had poisoned and killed her master.

Sue saw that Xiao Tao was lonely and decided to keep her around. Sue is very kind to Xiao Tao, and arranges a room for Xiao Tao An, so that she can change into the coarse clothes of the original maid and put on a lively and lovely dress. In fact, Sue is very kind to everyone around her, but only Xiao Tao is her personal maid.

In order to take care of Xiao Tao's mood, Su said that Xiao Tao is her partner, Xiao Tao is very smart, and she will complete any task that Su gives Xiao Tao well. Because Sue's sister has disappeared since she was a child, she regards Xiao Tao as her own sister. When Xiao Tao sees that Sue is so kind and loyal to herself, if anything dangerous happens to Sue, Xiao Tao will stand by her side.

When Xiao Tao worked with the CPSU, he fell in love with Shen, a policeman around Luo Qiuheng. Su, who has seen through all this, often secretly matches Xiao Tao and Shen. Xiao Tao helped Sue a lot when she was around, and once she comforted Sue regardless of her own life and death.