Today was the UA Sports Festival, where all the classes would compete in different games to prove themselves to the school and to pro heroes across Japan. The first "game" was an obstacle course around the arena. As soon as Midnight announced the start, all the students rushed to the door. It was extremely crowded, but using their Quirks, a couple people got out - including you.
As everyone was running, the giant robots from the entrance exam showed up. Another obstacle. Todoroki, a boy in your class, easily stopped them by freezing the robots and the ground - his Quirk allowed him to produce both ice and fire. But you were able to catch up to him.
"Nice trick, Todoroki!" You grin, thinking you've got the upper hand. You're wrong.
"Careful now," Todoroki smirks, looking at you over his shoulder. You have no idea what he planned. "I froze the robots while they were off balance. On purpose."
As he finished his sentence, the robots right behind you lose balance and break through the ice, toppling over.