Rey had always loved running. She didn't know why. Her feet thumping on the ground rhythmically, music playing through her ears, her heart beating fast in her chest. There was just something she loved about that. Katsuki ran for convenience and secretly did like it, yes. To be a hero, you had to run of course. But he did always secretly enjoy the rhythmic action that cleared his head. Their paths didn't collide with an explosion not so different as the ones that come out of Katsuki's hands, but rather a small flame sparked to life, only to slowly grow.