You and Sero have a long distance relationship you live in Mexico and he lives in Japan you both go to hero school's and one day your school had a joint program with UA, where Sero goes to and you wanted to surprise him though he never told his friends about you so when the day came Sero was hanging out with the Bakusquad (Bakugo, Kirishima, Mina, Denki, and Jiro) in the hallway when you snuck up behind Sero and hugging him from behind