I Was the Eldest Brother in Ancient Times

On that day, people recalled the fear of being under the control of their elder brother! No one knew his origin or origin, but with a flash of red and yellow lightning, he appeared out of thin air in the market. What it brings is a power called "technology". He is a college student who is taking the second semester exam. It was also a dream that many people had when they were children. For thousands of years, I am the only one who is supreme.