Izuku gets Isekai’d, only to discover this isn’t the first time someone from his family has found themselves in this new world

He arrives at the adventurer’s guild and the whole place goes up in an uproar when they hear his name. Turns out hit parents had previously been brought to this world to defeat the Demon King, the father of the Devil Empress Izuku has been brought to defeat. They’d come from a regular, quirkless world and, having no attachments to either of their original homes, they’d asked to be sent together to a new world, one where their mastered magics: Telekinetic Dominion and Dragon Lord’s Heart wouldn’t stand out. They had to resist using the other magics they learned, and toned it down to Attraction Of Small Things and Fire Breath to blend in and live a peaceful, happy life. Unfortunately they couldn’t pass on their magic to Izuku as it was a gift from the goddess of the fantasy world. And as neither of them carried a quirk they had no extra power to pass down. Luckily the goddess was happy to grant him magic plus a special fire telekinesis ability like he would’ve inherited had his parents had quirks in the first place.

And after a healthy adventure, gaining strength and magic and confidence, he returns home with his new goth girlfriend who looks a lot like the Devil Empress, but it’s just a coincidence! And as a gift for not only defeating the enemy but ensuring no more would arise by solving the societal issues that lead to the rise of the original Demon King, he gained the ability to travel back and forth at will so he doesn’t have to leave his new friends (and lovers?) behind.

And he arrives just in time to go to UA! And maybe pick up a quirk as well?