Zuo Qing Ci, a Marquis's son posing as a physician, seeks the elusive Mountain River Painting scroll for the Imperial Courts. He encounters Fei Kou Er, a mysterious bandit with a hidden identity as Su Yun Luo, the Zhengyang Palace's young miss. When her true status is exposed, they become targets, and Zuo Qing Ci bravely defends her. Framed by Wei Ning Hou, they delve into national intrigue, unearthing an old secret. Together, they journey as lovers and comrades, fighting to restore justice and overthrow their foes, carrying the weight of the nation on their shoulders. (Source: MyDramaList) ~~ Adapted from the novel "One Inch of Yearning" by Zi Wei Liu Nian.