The city may seem calm on the surface, but it hides secrets that cannot be revealed. The heroine, Mu Chengxu, and the second female lead, Liang Qingcheng, are both intelligence agents in District Q. During their missions, they face one challenge after another: the heroine must protect the male lead, while the second female lead must protect the second male lead. Little do they know, neither man is exactly a good guy. The two couples pretend to be in love, then find themselves falling for real, and together make enormous contributions to their country. Along the way, they experience many beautiful and heartbreaking stories, filled with trust, betrayal, understanding, and the unexpected. They grow together, little by little, and slowly fall in love. Everyone gets a happy ending in this sweet, sugary little love story.
