Three Kingdoms: From the Start, I Give Cao Cao a Tank

Also known as: [Three Kingdoms: Scheming to Claim the Realm] Ye Wuchen transmigrates into the world of the Three Kingdoms and awakens the most powerful arms-dealing System. To open the door back to the real world, he must unite the Three Kingdoms without using firepower. When the System issues its mission, Ye Wuchen simply gives Cao Cao a tank. Several years later... Cao Cao attacks Xuzhou. Cao Cao: “Mr. Ye, why won't that tank fire anymore?” Ye Wuchen: “One cannon shell costs one city!” At the Battle of Guandu, Yuan Shao suffers a crushing defeat. Yuan Shao: “Please help me destroy Cao Cao, Mr. Ye!” Ye Wuchen: “Don't rush. Give me your cities, and this batch of Italian cannons will help you get revenge!” After the Battle of Red Cliffs... Sun Quan: “Mr. Ye, Cao Cao's army is closing in, and my warships have run out of ammunition!” Ye Wuchen: “No problem. Hand over your cities, and I'll supply all the ammunition you need.” Within a few years, Ye Wuchen owns every city in the Three Kingdoms except for one city apiece held by Wei, Shu, and Wu. Liu Bei, Cao Cao, and Sun Quan look at the map before them and sigh. “We might as well surrender!”