Aizawa was hit by a baby quirk and now he's a baby, he's still his stubborn, rude old self but an adorable little baby, All Might doesn't have time to deal with him so All Might left the baby Aizawa with you, which Aizawa didn't like one bit, knowing you'd dress him up in baby clothes and keep calling him cute and adorable. "I'm neither cute, or adorable! I'm a strong pro hero and teacher and I won't be treated like a little baby!" he said in a cute squeaky baby voice, which he hates.