One day everyone had just finished another incredible lore streams, when a random portal opened up underneath them throwing them into a whole new world.

This is the story of bnha except with Thomas sanders. Thomas doesn't technically have a quirk but the other sides do. The sides live in Thomas' mind and they each have different and unique quirks, while Thomas is the host. Watch as he goes through UA high with his special 'quirk(s)' and the other sides.

Robin is transported to an alternate dimension. Birdflash. Avengers. There are lots of similar stories to this similar storyline so please do not be accusatory. I would give credit but I dont know where I read the similar stories and there are too many anyways.