At the age of four, Katsuki was cast aside by his parents and forced into the foster system because he was cursed with an unfortunate Quirk-Explosion-which happens to have negative connotations to it due to a villain in the past. His parents aren't the only ones who rejected him because of it, though; he's grown up without friends, with teachers and peers looking at him in fear no matter how hard they tried to hide it, and while he'd like to say he enjoyed being so lonely, that wasn't the case. Fortunately (though he might say otherwise if you asked, at least at first), one set of bright red eyes somehow managed to see past his Quirk and his rather abrasive attitude and can relate to him on a level he never expected. Years in the future, however, things aren't all sunshine and rainbows-in fact, they're far from it. Katsuki knows this, and no longer can he allow himself to drag the only person he's ever truly cared about through the mud with him.