At the Beginning of the Marriage, I Rubbed Barrett's Hands and Unified the World.

[Male overlord + passionate + no harem + revenge and hegemony + no system + farming infrastructure + arms] An agent from his previous life traveled through time and became a son-in-law? Don't panic! See how he uses modern knowledge to change his destiny! By chance, he rescued an imperial envoy who was on patrol incognito but was being chased by gangsters. On the way back to Beijing, they shared life and death with the Eighth Prince and became close friends. In this seemingly prosperous but hiddenly decadent ancient time, he relied on modern wisdom to introduce the art of steelmaking and briquette making to the people, improved stoves, innovated heating methods, and solved people's livelihood problems. One after another, novel delicacies were brought to the table. The heat of the hot pot and the fresh aroma of the stir-fry dishes instantly conquered everyone's taste buds, making dignitaries full of praise and calling them "the most delicious food in the world". Above the court, aristocratic families are scheming and forming cliques for personal gain in an attempt to control the situation of the court. He angrily slapped the case and said, "Aristocratic family? It's just a chicken and a dog. If you dare to block my way, blow it up!" Showing his domineering attitude. The emperor is fatuous and treats the people like nothing. He points his sword at the court and declares, "Your Majesty is unkind, so I will replace him and restore peace to the world!" The war was tense, and Jiaozhi and Goryeo invaded. He put on his battle armor and sent out his troops. He skillfully used modern military strategies to defeat the enemy and made them abandon their armor. He regained the lost territory in one fell swoop. He also incorporated the three countries into his territory and established a powerful Chinese country that was powerful in all directions. The Japanese Japanese pirates were determined to be thieves, so he personally led 500,000 elite troops to brave the wind and waves and attack Huanglong, completely destroying the country, and no longer dared to covet an inch of Chinese land. See how Xu Zilin unifies the world as a son-in-law in a different world, composes his own legend, and achieves a passionate and legendary life.