Adventurer from Another World

Lin Xiao was inexplicably reborn in a different world, and inexplicably had a system that had some feelings for him. This other world seems to be different from ordinary other worlds! Speaking of which, I, Lin Xiao, didn't have any cheats when I was reborn. Why is it that every time I do a mission, the other party is at the boss level? System, are you really doing this for me? When Lin Xiao grew up, he realized that he was just a small chess piece...