Lin Xu was once a top hacker, but under the influence of his lawyer girlfriend Jiahui, he embarked on the right path and began to help governments or companies maintain network security and live a normal life. Once, the network security system Lin Xu was responsible for was attacked, and the perpetrator was the female hacker Yilan. Yilan is talented, evil yet innocent, exuding dark charm, which makes Lin Xu involuntarily fascinated by her. The most important thing is that Lin Xu misses the pleasure of being outside the rules when he was a hacker.
However, there is a greater force behind Yilan. Lawyer girlfriend Jiahui seems to have another identity...