Li Yi --- Xu Kai
The seventeenth imperial grandson, son of Prince Liang. Li Yi has a cold and composed personality, with a noble and fearless spirit. Despite his high status as an imperial grandson, he has never received his father's affection since childhood. With no ambitions for power, he conceals his identity and desires only to be a carefree border general. However, due to the turmoil in the court, he is forced to embark on a campaign to suppress rebellion.
Cui Lin --- Jing Tian
Daughter of Cui Yi. Cui Lin has a strong and resolute personality, skilled in warfare, and fearless in the face of formidable enemies. Despite being the beloved and only daughter of the Commander-in-Chief of the Cui family army, Cui Yi, she often disguises herself as a low-ranking officer to traverse the military ranks. Her sole ambition is to achieve great success in the chaotic world she lives in.
Tao Zi --- Zheng He Hui Zi
Tao Zi, Cui Lin's personal maid. Tao Zi grew up alongside Cui Lin since childhood. She possesses exceptional medical skills, with extensive knowledge of pharmacology, specializing in the preparation of various poisons and unique pills. She has a bold and mischievous personality and shares a love-hate relationship with Xie Chang Er, a subordinate of Li Yi. As Tao Zi frequently delivers letters between Cui Lin and Li Yi, she frequently encounters Xie Chang Er, and gradually, a romantic affection develops between them.
Liu Cheng Feng --- Gao Han
Liu Cheng Feng, the adopted son of General Cui Yi, the military governor of Pinglu. He was taken in by the Cui family at a young age and grew up alongside Cui Lin, often referred to as the "Young Master Cui." Despite being physically weak and prone to illness, Liu Cheng Feng is exceptionally intelligent and strategic. Due to his frailty, he is unable to join the battlefield and often has Cui Lin wear a mask to fight in his place. He has admired Cui Lin for many years but is unable to express his love for her. He intended to be Cui Lin's shadow for life, but with the appearance of Li Yi, that dream becomes increasingly difficult to achieve. As a result, he harbors feelings of resentment and embarks on a path of seeking to win her love.
Gu Wan Niang --- Zhao Jia Min
Gu Prime Minister's illegitimate daughter. Gu Wan Niang is not well-treated at home and is sent back to her ancestral home for the family's blessings. During this time, there is a rebellion in the city, and her life is in danger. At a critical moment, she is saved by Li Yi, and she falls in love with him at first sight. However, love is one-sided, as Li Yi does not have feelings for her no matter how hard she tries. In order to win Li Yi's heart, she plots a series of schemes to create misunderstandings between Li Yi and Cui Lin, hoping to take advantage of the situation. However, reality disappoints her.
Xie Chang Er --- Liu Dong Qin
Xie Chang Er, a trusted confidant of Li Yi and a comrade-in-arms in the Zhenxi Army. He shares a deep bond with Li Yi and possesses hearing abilities several times more sensitive than an average person, allowing him to hear even the faintest and most distant sounds. Xie Chang Er has played a crucial role in securing numerous advantages for the Zhenxi Army on the battlefield. He is known for his reliable and steady character, although he is not skilled in verbal expression and remains somewhat oblivious when it comes to matters of the heart. He is drawn to Tao Zi's mischievous personality and eventually wins her affection, leading to a happy ending for both of them.
Consort Xiao --- Zeng Li
Former Crown Princess Consort. After Sun Jing's rebellion, Consort Xiao was taken into the palace by him. In order to preserve the royal bloodline, she endured humiliation and negotiated with Sun Jing. Consort Xiao has a dignified and elegant personality, with sharp wit and intelligence. She remains composed in handling difficult situations. Her perception of the world is astute, and once she has chosen a path, she walks it resolutely and fearlessly. She has feelings for Sun Jing, but due to their conflicting positions, she can only pretend and submit to him.
Sun Jing --- Yu Bo
The military governor of Hexi, one of the renowned "Three Heroes of the Imperial Dynasty" with impressive military achievements. After Sun Jing's rebellion, he killed the late emperor and the crown prince, self-proclaimed as the Grand Commander for Suppressing Rebellion, and occupied the capital with the intention of supporting a puppet emperor and wielding actual power as a regent. He is a highly cunning and inscrutable individual, skilled in winning the hearts of others, which has earned him numerous followers. Sun Jing and the former Crown Princess Consort, Consort Xiao, had a connection from their earlier days, and he still harbored unresolved feelings for her. However, their conflicting positions eventually led them to part ways.
Prince Liang --- Gao Shu Guang
Li Yi's father. Prince Liang has a weak and incompetent personality, lacking decisiveness and easily swayed by rumors. He favors his cunning second son, Li Lai, while recognizing the ambitions of his eldest son, Li Jun, despite his lack of ability. Unfortunately, he harbors disdain and wariness towards Li Yi, who is genuinely filial and highly capable.
Lao Bao --- Zhu Hong Jia
Lao Bao, Li Yi's trusted aide and comrade in the Zhenxi Army. Lao Bao was originally an obscure soldier in the Zhenxi Army, but Li Yi recognized his potential and appointed him as his personal guard. He possesses excellent culinary skills, particularly in roasting yellow lamb. As an experienced veteran, he often employs unexpected and unconventional tactics. When Li Yi raised troops to support the rightful ruler, Lao Bao accompanied him through life and death situations. However, he struggled to adapt to the dull and stifling life in the capital city and often reminisced about the days spent at the remote Lao Lan Pass on the frontier.
Cui Yi --- Jiang Kai
Cui Yi, the father of Cui Lin, the military governor of Pinglu and the commander-in-chief of the Cui Family Army, one of the "Three Heroes of the Imperial Dynasty." Cui Yi is skilled in warfare, possesses a keen intellect, and dotes on his daughter, Cui Lin, catering to her every whim. After Sun Jing's rebellion, he initially had intentions of vying for power himself. However, upon discovering Cui Lin's aspirations to become the Crown Princess Consort, he unconditionally supported her choice.
