This article is also called "What does Brother SWAT mean?" . Liu Heyuan first met Shen Xiangjie on the day of the college entrance examination. During the most important exam in her life, she had frequent accidents. Her aunt suddenly came to visit, and she fainted from exhaustion after finishing the last subject. Shen Xiangjie, a special police officer, personally sent her to the hospital. That year, she was eighteen years old and Shen Xiangjie was twenty-seven. Six years later, everything had changed. Liu He did not expect that she would meet Shen Xiangjie again. Just when she thought it was just a coincidence, Shen Xiangjie always appeared when she needed him, making her heart sink again. That year, she was twenty-four years old and Shen Xiangjie was thirty-three. Liu Heyuan: "Shen Xiangjie, do you think I will still be so stupid? The only time in my life that I waited for you was when I was eighteen years old. Don't wait until you are too old." Shen Xiangjie: "Then let me wait for you, and I will protect you to stay at the right time when you are eighteen, okay?"