The Most Powerful Exchange System in the Apocalypse

Li Fengyuan, the strongest god of war in the apocalypse, was reborn three days before the apocalypse and received the strongest exchange system. Predicting various opportunities in advance, and obtaining the strongest exchange system, he became the strongest overlord in the world. Even the pets around him were unicorns, and his mounts were all green dragons and white tigers... No matter how bad it is, it's all high-tech such as Star Destroyers, spaceships, etc. Women, even the three thousand harems of ancient emperors, are less than one-tenth of Li Fengyuan's. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.