Izuku and Katsuki always wanted to be heroes like their idol All Might. Ever since they were little they made a promise to one another. "Deku" Little Katsuki took his hand out to Izuku holding out his little pinky finger "When we grow up let's become the best heroes!" "Of course Kacchan!" Izuku took his hand and intertwined his pinky with Katsuki's "It's a promise!" They smile. Promising themself to be the best of the best. However... It was a promise that could be left broken, unfixable, and that led to Katsuki's most horrible regret...All Rights Reserved