Shocking! The Good-for-Nothing Son-in-Law Builds a Lithography Machine by Hand!

After transmigrating into an alternate Ming Dynasty, he becomes the live-in son-in-law of the Su family, the capital's wealthiest merchant clan. His brother-in-law treats him like a dog, his in-laws consider him a disgrace, and even his beautiful, aloof wife, Su Qingyan, is cold as ice toward him. Everyone thinks Lu Yuan is doomed to spend his life living off his wife's family. What they don't know is that the mind of this engineering PhD is the greatest cheat of the age!

The Su family's silk business is stolen? Lu Yuan upgrades the loom, boosting its efficiency tenfold and driving his rivals to bankruptcy!

Bandits run rampant along the border? Sorry, my repeating hand crossbow and exploding shells don't play fair.

Japanese pirates raid the coast? Just watch my steam-powered ironclad bombard Tokyo!

Starting with a bar of soap, then moving on to cement, steelmaking, and steam engines, Lu Yuan climbs step by step from a despised son-in-law to a marquis and chancellor, and finally becomes a duke of the realm through one era-defining invention after another.

The wife who once looked down on him now gazes at him with admiration in her beautiful eyes. “Husband, shall we... build another railway today?”