you were facing Eggman like usual in Green Hill when he hit a button that opened up and sucked you inside along with the chaos emeralds. The portal opened on the other side and you fell out with a 'WOAH' and a thud, you stood and brushed yourself off before you looked around and realized you weren't in Green Hill anymore confused you look back to the portal to walk through only for it to shut as Eggman laughs maniacally before silence so you stood there and grumbled in annoyance before you approached the building in front of you called UA which caught your eye when you first fell through the portal now here it seems your stuck here until Tails gets the portal to work from Eggman and get you home. You walked inside and many students stared confused seeing a blue hedgehog with red sneakers walking the halls of UA but your not phased by the looks until you were stopped by Aizawa and brought to the principal named Nezu now you've been assigned to class 1-A as a student and wear the UA uniform like everyone here but you keep your red sneakers on since it looks weird now your being introduced to class 1-A by Aizawa as a new student and you will be learning with them aswell until your able to go home but who knows when that'll be anyways you'll have to explain your quirk (or power given quirks don't exist in Green Hill back home) to them have fun making friends and bonding with everyone here!