Izuku Midoriya had known the Bakugo twins for almost as long as he could remember, but despite sharing the same face, Katsuki and Y/N had always felt like two completely different forces of nature. Y/N was only a few minutes younger than his twin, with the same wild ash-blond hair, sharp crimson eyes, athletic build, and explosive temper simmering beneath his skin, but where Katsuki’s features were harsh and intimidating, Y/N’s were softer, his expressions easier, his smiles far more common. He had Katsuki’s confidence, stubbornness, competitiveness, and tendency to swear when annoyed, but he knew how to control the fire instead of letting it control him. He was loud, fearless, fiercely loyal, and carried himself with the same easygoing toughness Kirishima would later become known for—the kind of guy who could threaten to knock someone’s teeth out and then immediately sling an arm around their shoulders like nothing happened.