Shoto Todoroki is a tragic figure wrapped in heavy regret, serving as the stark contrast to Izuku’s ultimate happiness. In the beginning, he is a man pushed to his breaking point by silent frustration and grief. Unable to handle the emotional strain of nine consecutive negative pregnancy tests, he lets his disappointment harden into exhaustion. Lacking the patience and understanding needed to support his trans husband through the difficult journey, Shoto chooses to walk away from his marriage rather than fight for it, mistaking a difficult obstacle for an impossible dead end. Years later, Shoto is a ghost of his former self. Having hit absolute rock bottom, he is depicted as disheveled, impoverished, and deeply lonely. His worn clothes, empty pockets, and reliance on cheap cigarettes symbolize his internal ruin. He is completely consumed by a bitter, inescapable remorse. Standing in the shadows across the street, he is forced to witness the painful irony of his choices: the family he desperately wanted and abandoned Izuku over was entirely possible—it just required the love, faith, and devotion that he failed to give.

Adult Katsuki Bakugo is the ultimate pillar of strength, devotion, and fierce protection for Izuku. While he retains the sharp edge, confidence, and intense drive of his youth, adulthood has matured him into a deeply grounded partner and a fiercely loving father. Visually, he is heavily built and imposing, but his sharp ruby eyes soften completely whenever they land on Izuku or their children. He carries himself with the quiet authority of someone who knows exactly who he is and what he wants. Emotionally, Katsuki is a man of action rather than empty words. Where others might offer fragile pity, Katsuki steps into the storm—quite literally—with a massive bouquet of red roses, offering Izuku unwavering certainty when his world is shattered. He doesn't see Izuku as broken or lacking; he sees the man he has always loved, completely accepting and supporting Izuku's journey as a trans man. As a husband and father of four, Katsuki is a protective shield. He is fiercely proud of his large, chaotic family, smirking through the noise and leaning into the quiet, soft moments of affection with Izuku on the city streets. He is the partner who stayed, fought, and built a thriving life out of the ashes of Izuku's past.

Sophie came after katsuki started dating they had got frist time and Izuku had 4 years later she walk with her mom and dad little brother and knew about get a other little siblings

He is Sophie young brother after 2 years after she was born