Li Ce, a young working man, is bound by a strange "system". If he fails in a time-limited mission, he will be wiped out. In desperation, he broke into Bureau 749 of the mysterious agency for help. With the help of the person in charge, Chen Zhuo, he completed "tank drift" and obtained the disruptive technology of "commercial lithium-air battery". After confirming the value, Bureau 749 fully protected Li Ce, helped him set up a company, and equipped him with top-level security. From being a low-level social worker to becoming the core of 749, Li Ce's life has been turned upside down, and new tasks for the system are coming one after another.
