The mechanical engineer possesses Lu Bu, and the God of War is no longer foolish. When other princes are still hammering iron with their hands, I have created a steam engine. When other princes are still using iron knives, I have already used steel knives .When the other vassals started using steel knives, I had already created the artillery. When the other vassals finally made the artillery, they could only be dumbfounded to see fighter jets flying overhead.