My Backyard Opens Onto the Three Kingdoms, and I Buy an Inspector with Glass from the Start

Zhang Heng, a young man from the modern era, accidentally discovers that the backyard of his home can take him to the end of the Eastern Han dynasty. The discovery leaves him thrilled. All he wants is to make money, so he plans to go into business, buying and selling goods between the two worlds for a profit. He intends to keep a low profile and gradually build his way up to becoming the richest man in the world. But then you all start treating me like a fat sheep. Liu Bei covets my fortune, and Cao Cao wants to steal my money too. Fine. Very well. If you won't let me do business, then don't blame me for fighting you for the whole realm! With supplies from the future, Zhang Heng sets out to conquer the realm. Years later, as Zhang Heng stands crowned in imperial yellow, Cao Cao and Liu Bei beat their chests in regret. “If only we'd known!”