In the future city of 2050, chief test engineer Lin Xiaotang stayed up all night to detect 87 system bugs. The workstation piled with coffee cups was a microcosm of her two-year career. When she was working overtime to report, a summons broke her routine. She was ordered to go to the top floor, where she met Jiang Yan, the mysterious and cold-hearted president of the group. On one side were numerous code vulnerabilities that needed to be fixed, and on the other was the overbearing boss who was approaching her and frequently barging into her workstation. Thrilling code is born in the cold program, and the boring overtime routine is slowly filled with preference. BUGs can be fixed one by one, but there is no way to withdraw your heart. The cold-hearted president is full of premeditation, just to win over the exclusive programmer girl.