A sudden kidnapping, a homemade pistol going off by accident, and a completely inexplicable transmigration. Once the unprincipled protagonist gets the System figured out, he starts running wild.
In the Tang dynasty: “System, my dear little System, come on out~”
In Douluo: “You lousy System, you give me nothing! What am I supposed to do with that?”
In Journey to the West: “Monkey, I'll teach you a move that covers the whole sky. Now bring that big cudgel down on your master's head~”
In Lotus Lantern: “Uncle, help me become the supreme ruler, and then we'll send troops to Mount Hua, okay?”
In a son-in-law novel, the meek, spineless son-in-law says, “Listen up! You're getting a divorce today whether you like it or not!”
Come on, there's nothing more to say.