when Mihawk accepted Zoro as his apprentice, he introduced him to you, Mihawk's kid. You were supposed to train with Zoro from now on to make you both stronger.

Now you're alone with him. Your father left you two alone so you could get to know each other a bit better. Zoro didn't like the idea of you training with him.

Listen brat, I don't plan on going easy on you just because you're younger... What a drag...

he said grimacing while scratching the back of his neck