I Built Cannons by Hand to Spoil My Wife, So How Did I End Up Wearing the Emperor’s Robe?

In a single twist of fate, Zhao Mu, a billionaire, transmigrates to Great Qian and becomes a mountain villager. With chaos looming, taxes are crushing, and people survive on grass and tree bark. The authorities send him a wife, but he beats her mercilessly because he believes a white tiger brings bad luck. Zhao Mu raises a powerful crossbow, builds cannons, and hunts in the mountains to support his lovely wife. Who would have thought that as he tinkered away, he would rise to the imperial throne, fill his harem with hundreds of women, and ultimately unite the land?