In the Demon Martial Realm, Killing Ants Gives Me Experience and Loot

[System + power fantasy + awakening past-life memories + multiple female leads + decisive and ruthless] That year, Wu Yang failed his imperial exam and threw himself into a river. After someone rescued him, he awakened memories of his past life on Earth. He also discovered that even killing ants gave him experience and materials, and that he could combine materials to make finished items. That year, Wu Yang abandoned literature for martial arts, and the Demon Martial Realm gained a god of slaughter! A veteran Martial King: “The most important thing in martial arts is perseverance. You have to practice day in and day out for a hundred years. It takes three years to get started, five to become proficient, and ten to reach a basic level of mastery.” Wu Yang: “No need. Killing ants gives me experience. I can reach basic mastery in three days.” An Empress: “The most important thing on the martial path is an ultimate cultivation technique. Pledge yourself to me, and I’ll grant you a peerless technique.” Wu Yang: “No need. I can get one by killing a few prodigies.” A scion of a great clan: “It takes money to study martial arts. You’re just the son of a minor constable. How can you compare with me?” Wu Yang: “There’s a saying back home: While the neighbors hoard grain, I stockpile guns. The neighbors are my granary. However wealthy your family is, it’s still my granary.”