Lin Yi, a doctor of military industry from the University of Science and Technology of China, traveled through time and showed his sword. At the beginning, Li Yunlong captured the young man to repair Hanyang!
Without a system panel, a brain full of hard-core military industry knowledge is the most powerful plug-in.
Li Yunlong thought he had picked up a college student who knew how to repair guns, but unexpectedly, this kid took out a thunder cannon, a personal rocket launcher, and even a field artillery! !
