During the Republic of China period, the young female talent, Lin Hangjing's father was framed and imprisoned, forcing her to seek help from her father's good friend, Marshal Xiao. Although she lived under a stranger's roof, she was neither submissive nor conceited. Her strong will and independence attracted the overbearing third young master of the Xiao family, Xiao Beichen. To train his son, Marshal Xiao sent Xiao Beichen to a military academy. Marshal Xiao's seventh wife promised Beichen that she would match him with Hangjing after his graduation. After five years of grueling training, Xiao Beichen matured into a steadfast soldier. While helping his father straighten up the army, he prepared to propose to Lin Hangjing. However, he quickly learned that she had already fallen in love with a hot-blooded young man named Mu Zizheng. As Lin's father fell into a crisis, Xiao Beichen and Lin Hangjing decided to enter into a contract marriage to save him. After the marriage, they went through all kinds of challenge