After being transmigrated into the body of an unwanted daughter sent to the enemy camp by her own father, Ning Zhao plans to steal military intelligence for the Ning family. If she survives three days, she considers it a win. But in a besieged city, she saves Helan Zheng, commander of the Northern Frontier, and unexpectedly takes possession of a military tally that can mobilize an army of a hundred thousand. Ning Tingyue waits for her to die, Liu Hanzhang waits for her to take the blame, and Huo Qingya is determined to kill her with his own hands. When Ning Zhao returns with the tally, the family who once cast her aside like trash finally regrets it to the point of heartbreak.
