Sheng Hua --- Yang Tong Shu
Sheng Hua, the younger sister of Emperor Qi Jing, is a gentle and virtuous woman. Though she possesses a shrewd mind, she conceals her sharpness. After marrying the Duke of Dingnan, Shang Wei, she adopts Shang Yi Zhi as her foster son and treats him as her own, providing him with careful nurturing and guidance.
Qi Jing --- Yin Zhu Sheng
Emperor Qi Jing of Nanya is extremely suspicious and prone to unpredictable mood swings. He collaborates with Lin Xiang, and anyone in the capital who is considered suspicious is subjected to strict investigation. He would rather risk killing an innocent person than let a single one slip through, causing great fear and unease among the people in the court.
A Mai --- Zhang Tian Ai
A Mai, the daughter of Duke Jingguo from Nanya, disguises herself as a man and ventures into the martial world after her entire family is killed by her childhood friend, Chen Qi. Her sole purpose is to seek revenge against Chen Qi. By a twist of fate, A Mai saves the son of the Crown Princess, Shang Yi Zhi, and from that point on, she repeatedly aids him in escaping from various predicaments, intertwining their destinies. As war breaks out, A Mai discards her feminine attire and joins the military as an infantry soldier. With her exceptional military talents, she achieves remarkable feats and rises to the rank of General Mai, earning great recognition. (Note: "麦帅" is a title and can be translated as "General Mai.")
Shang Yi Zhi --- Zhang Hao Wei
Shang Yi Zhi, the illegitimate son of the late Crown Prince of Nanya, originally named Qi Huan, is charismatic and intelligent. He is adopted by Princess Sheng Hua. After many years of biding his time and concealing his abilities, he aims to reclaim the throne. His relationship with A Mai also experiences numerous ups and downs. Ultimately, their fates lead them towards an unknown direction, guided by the wheels of destiny.
Chang Yu Qing --- Wang Rui Chang
Chang Yu Qing comes from a prestigious family of military generals and possesses a proud and arrogant personality. On the battlefield, he frequently clashes with A Mai as adversaries. However, outside of the battlefield, they find themselves inadvertently experiencing life and death situations together. Through these experiences, they gradually come to know and appreciate each other.
Tang Shao Yi --- Gao Ge
Tang Shao Yi, a renowned general of Nanya, is skilled in cavalry warfare and known for his loyalty and integrity. Mistakenly believing that A Mai is a spy infiltrating the city, they initially meet under suspicious circumstances. However, as they journey together and fight side by side, they form a strong bond of friendship.
Prime Minister Lin --- Wang Yong Quan
Nan Xia's Prime Minister, the foremost civil official in the imperial court, known for his astute strategies and deep calculations. Due to his constant concerns for the well-being of the court and the people, he enjoys a high reputation among his peers and receives great favor from Emperor Qi Jing, making him unparalleled among others.
Xu Jing --- Yu Yang
Xu Jing, the military strategist of the Jiangbei Army, possesses exceptional intelligence, profound foresight, and eloquence. Originally a civilian strategist, he was later recruited by Shang Yi Zhi to serve under him and contribute his strategic planning.
Xu Xiu Er --- Jiang Yun Xi
Xu Xiu Er, the daughter of the prison chief in Hamburg City, crossed paths with A Mai and developed a fondness for her after the city was conquered. She joined the military and served alongside A Mai, always by her side.