Union Academy: Legacy Of TCB.

The Equestria's Bureau Empire has lost thanks to the combined powers of humanity and defective ponies. Before her execution, the once Princess ruler of Equestria, Celestia, has requested that her last creation potion to be kept hidden away for the future coexistence of both Humans and Ponies alike. Millenniums after the Great Conversion War ended, a team excavation finds a metal box container and places it in a museum at the Union city. The home to Union Academy's heroes of quirks, aura, semblance, chakra, sacred gears, and many more. Weeks later, burglars broke in to steal some treasures including the metal box, but it got flown out of the vehicle when they were chased by police. The next morning, it's later found by a former student homeless boy who was abandoned, bullied and neglected. What will his new life be when he opens it? Will it be used for good, bad, both, or neither? Either way, when the black box is opened, this will change the world of Union and everyone else forever.

(Warning: Gore, death, swears, and some others.)