Song Wanqing, the number one socialite in Shanghai, was betrayed by her fiancé and stepsister at her engagement party. She was abandoned by her family overnight and fell from the clouds into the mud. When she was at her most embarrassed, she met Gu Yanzhou, the most mysterious and cold-blooded legal elite in Shanghai. She thought this was just a transaction of using and being used. She used his power to take revenge, and he used her identity to stir up trouble. Who would have known that behind this seemingly ruthless lawyer was actually a powerful northern marshal. He worked step by step, pulling her up from the mire, protecting her from the wind and rain, tearing apart scumbags and scumbags with his own hands, and doting on her until the whole Shanghai beach was jealous. When family feud and national hatred intertwined, Song Wanqing discovered that she had been firmly locked in the heart of this sinister man. She stood side by side with him in the center of the torrent of the times, using love as a boat to tide over the crisis of her family and country.