American Arms Dealer

He was originally a poor otaku, but unexpectedly he became a third-generation rich man. Except for the different place names, there is no difference in this world, so I can live as a rich third generation with peace of mind. But suddenly one day, his backstage collapsed and he had no choice but to take over the family business. But the family business is not ordinary, and there is an inside story. Grandpa's death is also not ordinary. Once checked, if you don't rise, you will die. For the sake of a small life, you buy factories, develop weapons, sell weapons, and never return on your way to becoming an arms tycoon.