We didn't know it but Tsuna is already powerful way before Reborn came. Only the thing is that he isn't chosen for the Vongola Boss position. His brothers were picked CANDIDATES for the title. But what happens when the two of them refused to take it? Will someone discover Tsuna's secrets and possibly convince him to take the boss title? Or will everybody (except certain and unexpected persons) ignore him like he wants it to be? But who ever said that The World's Greatest Hitman, Reborn, ignores Potential is sure an idiot.