To fight against the invading Western Xia, the Northern Song government held a martial contest to pick out the commander of the troops. Yang Wengguang won the contest after hacking Wang Lun. At the recommendation of Kou Zhun, the Song Emperor asked Yang’s mother Mu Guiying to lead the troops. Mu, already in her fifties, had been disappointed at the imperial court’s coldness to the yang’s over the years. But at the exhortation of the Old Lady She , Mu accepted the appointment, rallying the troops for national salvation.