A few days after her wedding, Tong Lu was told that her husband had passed away. She was asked to never remarry and to look after her husband's illegitimate daughter as her own, for the rest of her life.

Four years later, her deceased husband's twin brother entered her life like a whirlwind. He was rich, powerful and handsome. However, he was also intimidating and seemed to be full of secrets. He invited her and her daughter to live in his mansion despite his family's objections. Tong Lu thought that she and this desirable man were from two different worlds, but she was spectacularly wrong...