The heroine and heroine are both from the countryside. The heroine's family has been anti-narcotics police for generations. The hero and heroine were classmates in high school and had a crush on each other, but they did not express their feelings. In high school, the heroine's father died during an undercover mission. After graduating from high school, the hero and heroine entered the same police academy. The hero was a newcomer and was sent to do undercover work when he first arrived. Four years later, the heroine did an undercover mission. The protagonist met in Cambodia and they pretended to be in love. During a transaction, the drug trafficking leader learned of the heroine's undercover identity and asked the hero to torture the heroine to death. The heroine died in the hands of the person she loved most. Later in the finishing mission, the hero avenged the heroine. The hero received a diary with the heroine's full love for him, and he personally solved the drug trafficking leader. He voluntarily took on the task of taking care of the heroine's mother. After his relatives passed away one after another, the heroine's mother also passed away. When he was thirty-five years old, he got lung cancer. He was very lucky that he could go find her.
Purpose: To let everyone know about the anti-drug police and the border situation in Yunnan