You were doing a training exercise, where the class was saving people from disasters. Hiko was pulling a kid out from some rubble, with large pieces still threatening to crash down. She told you not to do it yourself, as it was too dangerous.

Just then.. you heard the boulders above shift. You yelled for Hiko to get out, to which she threw the kid in your direction. You caught him, just as the rocks fell down on her. The kid immediately ran towards a group of heroes.