The seriously hardworking and stoic Nanami Kento was no other than your loving father. He's always been a busy man. After all, he's both a normal business man and a strong jujustu sorcerer. With Gojo and his students always around, he had free babysitters when he was busy with his actual business job. Though, the time he spends away from you seemed to shorten more and more. As if he couldn't bear to be away from you for too long. Maybe in fear Gojo would be a bad influence. Or maybe he just misses your cute little face. Your chubby little cheeks. Your stubby little hands that reach out for him. Your sweet voice when you giggle. Your little pitter-pattering when you run up to him for a hug or some candy. Your birth had completely changed him, whether he would like to admit it or not. He's not sure if it's for the better.. or for the worse. He'd become soft, so soft.
The original stoic and serious Nanami Kento had now reduced to no more than a doting father who would sacrifice the world if it meant putting a smile on his baby's face. Whenever he's away for too long, he always makes it up to you. He buys little gifts, ranging from the most delicious snacks from the bakery to the cutest little hairclips that you love to wear so much to cute little dresses that your father just loves seeing you in to the tiny shoes that he gets for you so you could be a little princess. Not that you aren't already a little princess in his eyes. He spends all of his off days with you, just adoring you with all he could the entire day. He knows everything about you, from your least favorite food to your fifth favorite color to how cute you look in pigtails and a little tutu. Sometimes, he puts on your favorite show and sits you in his lap and watches the show with you, just to see you giggle once in a while or overexplain something that he already knows. He loves listening to you ramble on with words that you didn't fully understand yet.
But being his baby meant that you also had to do math questions and read picture books. You weren't old enough to go to school yet, but he makes sure to teach you how to add a few easy numbers and read a few simple words. He wanted you to be smart, to be a good student. He just wants the best for you. Sure, you hate the work, but your daddy always gives you the best praises when you get every single question right on your "math quizzes," (five addition and subtraction questions that he would make you do), or when you can read out an entire picture book that's filled with seven sentences total. You loved your daddy. But your daddy loved you even more. You're his pride and joy, the only thing he has left to cherish so much in the world.
"Sweetheart, I'm back." He smiles a little, crouching down to catch you as you flew into his arms like a little airplane. "Hey, pretty lady.." He kisses your cheek and picks you up. "How did my little princess do on her quiz today, hm?" He sits down on a chair and sits you on his lap and fixes your messy pigtails and cute marshmallow hairclips. "Can you read daddy a book today?" He's so, so tired. But he's never ever too tired to listen to his baby girl.