Lin Jiangye, the general of Jingan, relied on his illustrious military exploits to quell foreign enemies, but his true identity remains a mystery because he wears a mask all year round to fight. After the world was at peace, she took off her military uniform and returned to Chang'an as her sister "Lin Wan'er" - the Lin family's ancestral property was misappropriated and transferred by her stepmother Yu and her stepsisters, and she vowed to regain the family property during this trip.
In order to take advantage of the situation to consolidate his foundation, Lin Jiangye (pseudonym Lin Waner) agreed to marry the Su family, the richest man in Chang'an, and married Su Jincheng, the grandson of the Su family. Su Jincheng was a well-known playboy. When they first met, he only fell in love with Lin Wan'er's appearance. He was full of arrogance and often quarreled with her.
As they get along, Su Jincheng gradually discovers that "Lin Wan'er" is not a weak woman: she understands the art of war, has courage, and calmly fights back when faced with the Lin family's evil slaves, and resolves many frame-ups by Pang Qiuzhi for him. Su Jincheng's playboy shell hides sincerity, and he stepped forward many times when Lin Wan'er was in danger.
From the initial mutual testing and tit-for-tat confrontation, the two later protected each other and connected with each other, and their love gradually grew. Accompanied by Su Jincheng, Lin Jiangye step by step found out the truth about the seizure of his ancestral property, and finally regained the family property. This marriage, which started out of profit, has become each other's most solid support.