Iron Man's Will, Actually I Have a Brother

There was a man who nearly wiped out SHIELD by himself ten years ago. In order to research superpowers, he killed almost all superpowers in a country to extinction. The mutant army he created once dominated the underground world. He was once the king of black and white. At a young age, he was known as the craziest scientist. But one day, this man disappeared together with his army of mutants. After Iron Man asked* to sacrifice himself to destroy Thanos, he said in his will. "Actually, I have an older brother. His name is Jeff Stark..." This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.