Kage no Jitsuryokusha ni Naritakute!

A shadow broker is someone who pretends to be a discreet person, trying to keep a low profile, but in reality controls everything from behind the scenes. Sid wants to be like that more than anything. Nothing as trivial as boring reality will disturb you. He trains every night in secret, ready to eventually seize power, until an ordinary (albeit fatal) car accident ends his fate. But when he wakes up in another world and suddenly finds himself at the head of a real secret organization that fights evil in the shadows, he will finally have the chance to put all of his fantasies into practice!