Geist is a ruthless and skilled special agent. Having traveled through the shadows of the nation, he lost his life during a top-secret mission due to an enemy plot. Or so he thought, but he wakes up in the form of Sakuraba Keisuke, a high school student in the middle of a fight. He is caught up in a mysterious battle where he streams the fight and earns money based on the outcome. Geist borrows the body of a frail high school student and vows to take revenge on his former enemy. The weakest body houses the strongest mind and technology... A special agent's revenge battle action!