Urban Alien Hunting: I Use My Mortal Body to Suppress Aliens

Ten years ago, the first alien creature came to Earth. Some say they are gods, some say they are demons, and some cheer for the arrival of new civilization. And Bai Yi's parents died in that "welcome". Ten years later, he was the most ordinary senior physics researcher of the Mio Group. He had a scar on his left eyebrow and looked like a monster. No one knows that every night, this taciturn man will bring home-made ceramic shields, modified shotguns, and various equipment "coordinated" from the company to send back those who have strayed into this world one by one. The wonders of Shan Hai Jing? Exile. Skynet's T-800? Remove the core. Greenskin Orcs from Warhammer? A fire to burn it clean. He has no superpowers, no system, no magic. He only has a brain that is always calculating, and a drawer of plans that will never be used up. Until the blond exorcist who was carrying a soul box and claimed to be from Demacia found him—— "How much can you handle on your own?" Bai Yi raised his eyes. "Kill as many as you come."