What Bai Su (played by Zoe Tay) was joking about her friend Bei Mengdan (played by Aileen Tan) looking like a waitress with her outfit as the latter was brought to Chief Bai's (played by Kenneth Tsang) house along with Bai Su's brother Bai Qiwei (played by Bernard Tan) for dinner, and later Chief Bai joking about it as well as Mengdan was bringing out the soup that Chief Bai made, it was due to what Mengdan was wearing in a cheongsam or also known as qipao. The modern use of the cheongsam (or qipao) tends to be restricted to festivities like Chinese New Year, weddings, or a form of workwear for female flight attendants and ground workers in some airlines in China and Taiwan, and at Chinese restaurants and hotels.