Song Jiang, the leader of the outlaws, wants to obtain an imperial amnesty for Liangshan so that they could serve the Song Empire. Upon learning that Emperor Huizong is secretly seeing the courtesan Li Shishi, he sends Yan Qing to contact her in the imperial capital Dongjing and ask her to set up a meeting between him and the monarch. Li Shishi, however, is infatuated with the dashing and handsome Yan and tries to seduce him. But he pretends to be oblivious to her hints and instead makes her agree to be his sworn sister.