Shi En told Wu Song that his thriving shop near the Joyous Grove had been seized by Jiang Menshen, who had also beaten Shi En. Furious, Wu Song vowed revenge. To avoid alerting Jiang prematurely, Shi En introduced Wu Song to his father, the Garrison Commander, who asked Wu Song to become his sworn elder brother. Wu Song accepted, and they celebrated with wine. Using a clever ruse, Wu Song feigned excessive drinking to ease tension before confronting Jiang Menshen at the Pleasure Grove. Wu Song defeated Jiang, imposed three conditions, and released him. Later, the Deputy Commander of Mengzhou hosted
