After her family is killed by her childhood sweetheart, A Mai disguises herself as a man to seek revenge. Along the way, she rescues a royal heir, joins the military, and rises to commander through her battlefield successes. As war intensifies, A Mai is torn between duty, loyalty, and the pain of her past while uncovering hidden truths that will shape the fate of the nation.
Ye Lingshuang, an ordinary maiden who grows up with the beloved youngest princess of the grasslands Qi Hairui / Zhuyan. The girls become best friends, and Ye Lingshuang swears allegiance to the princess. Unfortunately, the Kingdom of Zhao’s ambitious ruler Yu Xiuming conspires a plan to take over the grasslands, which eventually leads to Qi Hairui’s suicide. Ye Lingshuang vows to avenge the death of her princess, and enters Yu Xiuming’s palace under a new identity. The emperor develops an interest in Ye Lingshuang after realising her true motive, and the heroine becomes torn between loyalty to her homeland and love.
Orphaned Luo Xiyun was born with a fatal poison. She becomes a popular surveyor in Cang Yue and with limited time left, she seeks to avenge her family by targeting the young city master, Jiang Chaoxi. As she navigates her mission, she also works to save her last refuge, Jianjia Lane, from demolition. During her efforts, she uncovers surprising secrets and faces new challenges as her situation evolves.