Hero From A Distant Galaxy

[Returner]: This was the Quirk that Midoriya always possessed, which was activated after he was run over by a van. Upon activation, [Returner] would send Izuku's consciousness to another world, only to bring him back to the Quirk world aferwards, retaining all the powers he had obtained. Unfortunately, although Izuku has now gained quite interesting superpowers, no one will believe him if he tries to reveal the origin of his Quirks,[Biotics/Omnitool], and much less will they believe the tale that he was the greatest hero of an entire galaxy.
That's right, Izuku has become Shepard, once the green-haired commander of the Normandy. And now once again, he has difficult missions to accomplish: stop the villains who are secretly conducting genetic experiments on Japan's high school students, to begin.....
Will Aliens also exist in his home dimension? And if they exist, will they also have Quirks? Zuku Shepard doesn't know yet, but he plans to find out....
[Izuku OOC/Initially,Vigilant/ Harem, but only 2 Romances]