Zero as an opponent, that was literally having to compete with Rank-S, at least that is what they feel.
Unlike others, Hiro and his group had witnessed Zero's strength on several occasions. And even if the opponent was way beyond him, they had never seen him lose.
Moreover, in the two years they had not seen Zero, he had grown considerably stronger and his rank was now higher than them.
"Guys… "
Sylvia wanted them to just think of that as a joke. Anyway, she didn't think that Zero would lose, at least not to anyone under Rank-S.
"Seriously, Zero doesn't have many weaknesses. He wields both Ice Magic and Sword Art. Additionally, he has ridiculously powerful attacks. And who knows what kind of trump card he is hiding."
Hiro said. Although he will not give up if he needs to fight against Zero but by thinking rationally, you cannot exploit Zero's weaknesses as he has almost none.