"Kids all think they're the main character, the hero. Only adults realize they're just some passerby NPC."
Wang Shu, a PhD student in computer science, transmigrates to the world of Arknights after overworking himself to exhaustion. But he doesn't become Rhodes Island's most important "Doctor". Instead, he transmigrates into the body of a talented Rhodes Island Vanguard Operator.
Wang Shu was a perfectly good PhD candidate and pacifist. Now he's suddenly being told to go out and hack people to pieces, and deep down, he really doesn't want to. He was supposed to be a researcher contributing to the progress of science in a lab and a server room, so why has transmigrating turned his job into dangerous work that requires him to fight people with a blade? But his employment contract says combat is his responsibility, and breaking it means paying a fine. With the land in turmoil, he has no choice but to step up, join forces with others, and fight his way out to survive. So Wang Shu recites a couple of lines of poetry on the spot, then goes back to hacking people to pieces:
"If we can stop the invaders, why kill more than we must..."
This is the story of a Vanguard/Guard Operator in Rhodes Island's security department, a man who loves research and dreams of earning a doctorate.