Female protagonist: Qin Xiaowan (21 years old), a doctor of modern agriculture and a lover of military history. She traveled through time in a car accident and became the eldest lady of the Shangshu Mansion. He appears gentle but is actually decisive, making good use of modern knowledge to transform ancient times.
Male protagonist: Gong Junlin (24 years old), the third prince, the fiefdom of Yanzhao (barren frontier). Her mother and concubine died young, and she was ostracized by the crown prince and the second prince. She seemed idle but actually had great ambitions.
