Katsuki laughed as he chased Ilaria around the house, tiny explosions crackling in his little hands as Ilaria dashed away. But Katsuki grew irked, unable to match Ilaria's speed.

Out of frustration, he unleashed a small explosion at Ilaria's feet, causing them to stumble and fall. Katsuki's eyes widened in surprise, but soon a triumphant, arrogant smile crept across his face as he strode confidently toward his fallen sibling.

Katsuki: "Ha! That's what ya get for trying to outrun me! You're such a loser, Ilaria!"