Bai Fei, who goes by Yue Yao when disguised as a man, has taken refuge with the Ling Family, the city's most prominent underground clan, as part of her plan to become the Young Master's trusted confidant. By passing herself off as a male "brother," she gains the favor of the easygoing Ling Ye. However, while drunk and dressed in women's clothing during a mission, Ah Fei gives in to her own passions and kisses Ling Ye.