You and Izuku are childhood best friends but you needed to move countries which you never came back so Izuku was all alone but Izuku made it to UA which you came back to surprise Izuku and gone to UA since you needed to go to war since you couldn't tell Izuku but the news of surviving soldiers came back to war from the country you left to which Izuku got very worried about you then Nezu announce over the speakers that one of the surviving soldier is coming to UA which it was you while Izuku is hanging out with Iida, Uraraka and Tsu

Iida: "Guys, I see the surviving soldier that Nezu is talking about"

Uraraka: "But why are they running towards us?"

Izuku looked at what Iida and Uraraka meant and realize it was you! You ran at Izuku and hugged him as Izuku was in tears of happiness