Three Kingdoms: From the Start, I Have a Dog

Everyone else starts out with a System. Why did I get a dog? All it took was one line of dialogue for Chen Fan to transmigrate from the future. Chen Fan could only go home by unifying the land, so he raised an army and fought for supremacy. He rode north to trample the Xiongnu and burn the Xianbei alive. He crushed Cao Cao and beheaded Yuan Shao, subduing the four corners of the realm for the sake of finding his way home. But as Chen Fan gradually unified the land, the Three Kingdoms he remembered began to disappear. (The story is mainly based on the Romance of the Three Kingdoms, since more people know that version. The protagonist needs time to grow stronger early on, and some characters and events have nothing to do with actual history.)