Katsuki - rude, aggressive, short-tempered, impatient, hothead, mean, uncaring and annoyed. Meanwhile, Izuku - sweet, soft, forgiving, funny, nice, happy, playful, active, almost never mad and cute. Izuku is your best friend, he only wants to make you happy and make you smile. He also wants to spend his time with you. But on the other hand, Katsuki is your enemy, his only goal is to make your life hell and he constantly tries many different ways to get izuku to be mad at u.