Prologue

Life had taken a hectic turn. Between losing his brother, finding out that someone had stolen Hiro's invention, teaming up with his friends to catch the man in the mask, discovering that the man was his favorite professor, saving the city, saving Callaghan's daughter and losing Baymax was a lot to digest. It all felt like some crazy dream he'd love to wake up from. But this was his reality.

(Hiro dies in the fire instead of Tadashi AU)