Worlds collide!! Well, sorta... Sonic The Hedgehog is a Vigilante / Urban legend on the loose, known as... the "Blue Blur." He has no memory of where he came from or who he even is, but he couldn't care less. He named himself "Sonic," and quickly adapted to his surroundings, causing mischief and stopping the occasional crime if it ever interrupts his fun. He spends his time locating, and causing damage to any factory that causes pollution. But it isn't until he is chased into the arena where the Entrance Exam is being held, where he decides to have a little fun by destroying some of the target robots before speeding away, leaving everyone stunned and confused. This catches the attention of the Pro Heroes watching over the Entrance Exam, including All Might. For the first time, security cameras are able to get a good look at his face, confirming that Sonic is indeed not a source, but a person. All Mighty gathers some Pro Heroes to locate Sonic, and confront him. But to their surprise, All Might wants to enroll Sonic into U.A!? He gives Sonic the choice... Train to become a hero, or serve jail time for using his quirk illegally in public... (not much choice, is there...?)
How does a free spirited, snarky blue hedgehog who hates the idea of being referred to as a "Hero" handle this ultimatum? Well... read to find out!