The female protagonist, a survivor from the apocalypse, unexpectedly travels through time and becomes a maid in the disgraced Minister of Personnel's household. Implicated in her family's case, she is exiled to the frontier. The imperial court arranges stable marriages between soldiers who have distinguished themselves in battle and the disgraced officials' female relatives. Those who are not chosen must go to the rear of the military camp to perform labor. Knowing how difficult the road ahead will be, the heroine wants to secure a peaceful future for herself. Upon learning that Xiao Yan, a soldier with outstanding military achievements, has no interest in marriage, she refuses to passively await her fate and boldly steps forward to recommend herself. Together, they seek a peaceful life and a way to survive amid the chaos of war.