The Extraordinary Marshal of Great Yan

Because of family troubles, the protagonist, Yang Zhanfeng, goes out drinking. On his way home, a meteor suddenly falls from the sky, and he dies, only to be reborn in the seventh year of the Great Yan Kingdom, in a parallel world. He is reborn as Yang Zhanhua, the fourth young master of the Yang family, one of the Great Yan Kingdom's four great families. Now seventeen, he has been a wastrel since childhood. Since he will never inherit the family business, he has spent his youth eating, drinking, and having fun. When he comes of age, he even volunteers to manage the family's few shops in Yunnan. Since there are only a handful of small shops there, and Yunnan borders a barbarian nation called Wannan, whose criminals often cross the border to loot, the eldest young master quickly agrees to Yang Zhanhua's request and sends him to Yunnan as the family's manager. When Yang Zhanhua arrives in Yunnan, the System awakens. It's a Great Nation Ascendant System: as long as he has enough points, he can return to his original world, though he can only do so as an undocumented person, since his original body has already died! Points can also be exchanged in the System for any supplies, even little boys, but the prices are astronomical, so he can't afford them! He can also trade silver for points, then use those points to exchange for any supplies from before the end of the World War. Using his ability to travel between the two worlds, Yang Zhanhua buys low and sells high. He takes modern crafts to the Great Yan Kingdom to fool the foreign devils, then brings the Great Yan Kingdom's gold back to the modern world and trades it for silver and other crafts in countries around the globe. Once he has money, he can exchange it for points, then trade those points for weapons and supplies from the System. In the end, the protagonist stands on the bridge of the world's largest aircraft carrier, gazes out over the vast ocean, and says just one word: “Set out!” The entire fleet, with more than ten aircraft carriers, over a hundred capital ships, and countless support vessels, sails in grand formation toward the far side of the ocean!