During the Tianbao period of the prosperous Tang Dynasty, Shen Changge, the daughter of the minister, met Qin Hen, a general from a poor family, at a banquet in Qujiang. A political marriage binds two completely different souls, from mutual hostility to life and death commitment. When the Anshi Rebellion broke out, Qin Hen was ordered to go on an expedition, but was framed by his political enemies and charged with treason. In order to prove her husband's innocence, Shen Changge stepped from the beautiful boudoir into the bloody battlefield. In the chaotic world of power struggle and war, Shen Changge composed a soul-stirring tragic song of eternal regret.