All Four of My Brothers Have Systems

Once I traveled back in time, I originally wanted to travel back to five years ago, but ended up traveling to 18 years ago. I became a twelve-year-old kid and accidentally awakened the system. Then, because of the system awakening, my four brothers also awakened the system. Qin Yu: Gan! I haven't tried very hard yet! Why are you invincible? Qin Zhou: Brother, come here quickly. The ten-turn improvement pill has been refined. You can definitely reach the realm of a saint! Zhao Shiyi: Let me see, which ingredient should be cooked first? Braised Ghidorah or Grilled Black Dragon? Li Tianqiang: Brother Yu! I have built a fully automated mecha manufacturing factory that can produce 5,000 designated mechas every day. Zhao Kai: Leave the resources you use to me. Anyway, if you don't have enough money, just use spiritual stones or other minerals! I am the richest man, you can do whatever you want. Qin Yu: Tsk! How about we calm down first? We are still very young. Behind Qin Yu stood tens of thousands of demons and immortals, tens of billions of mecha troops, space battleships, golden dragons, and Kunpeng suspended in the sky, he said helplessly. Universal System: I just want to be the god of systems, so why did I build a country of systems?