I've Got a Ton of Brothers, and I'm the Yakuza Boss in Tokyo

Gao Qiang came to Tokyo in Sakura Nation to study abroad and unexpectedly awakened the Big Brother System. By spending a certain amount of resources, he could recruit countless good brothers who were always willing to go through fire and water for him. The good brothers earn the money, the big brother spends it. Not a penny goes home! From then on, Gao Qiang began his journey to the top. At first, everyone thought he was just a Dragon Nation student abroad with a bunch of poor relatives... Until, a few years later, Gao Qiang had taken control of all Tokyo, with his influence stretching from street-side arcades to underground gang-run casinos, and even the Tokyo Metropolitan Police Department! He trampled Japanese starlets underfoot and beat up Japanese gang bosses. When he was in a bad mood, he would kick the Sakura Nation prime minister around a bit, while even the Eagle Nation's stationed troops had to pay tribute on time! The world gave him titles such as Dragon Nation's God of War, Tokyo's Huang Chao, Dragon Nation's Commander-in-Chief in Japan, the true ruler of Sakura Nation, the man with the highest bounty in modern history, and the mysterious tycoon with the most assets in the world... Good Brother A: “I can operate a lathe!” Good Brother B: “I can weld!” Good Brother C: “I can cut explosives!” Gao Qiang: “Hey! I've got a great idea!” I just have a few more good brothers than most people. How did I become Tokyo's biggest crime boss?!