Chun Tumi, the daughter of a military household, had always aspired to become a lawyer. However, her dreams were interrupted when her father, Chun Dashan, was falsely accused and imprisoned. With no male members in the family and a stepmother who lacked courage, Chun Tumi had to take matters into her own hands and defend her father in court. It was during this time that she met Yasha, and the two formed a bond of encouragement and mutual support despite their different backgrounds.

Chun Tumi refused to be intimidated by hierarchy and used the law to uncover the truth behind the "Poisoned Fish Soup Case." She not only sought justice for Mrs. Fang, but also uncovered the connection between her father's case and the aforementioned one. With her determination and the support of Chancellor Kang Zhengyuan and Han Wuwei, the eldest son of Dali Temple, Chun Tumi joined the prison patrol team and solved various difficult cases. Her efforts ultimately made her the first female lawyer in ancient times, and she found love in Yasha as they faced life and death together.