Xun Shuoyao, the lone daughter of the General's Residence that Guards the Nation, devotes herself wholeheartedly to managing the Marquis's household, waiting with all her heart for the man she loves, Song Kaixuan, the Marquis of Wu'an. Instead, she receives the news that he intends to take Su Qing, the female general who saved his life, as his secondary wife. Their promises of the past turn to ashes, and she resolutely divorces him, severing her ties of affection. Just as the border is thrown into crisis, Xun Shuoyao dons her armor and marches into battle. With the skills inherited from her military family and her extraordinary strategic insight, she distinguishes herself on the battlefield, fighting alongside Prince Qi, Liang Qi, to defeat their enemies and quell a rebellion. When the schemes of Song and Su are exposed, they are consumed by regret, but Xun Shuoyao has already secured command of the troops and made her name on the battlefield. In the end, she joins hands with Liang Qi, wielding her spear as a woman of extraordinary strength to bring the world under her rule.