Your teams were enemies

You were going to the bathrooms, but then you came across a scene that made you a little angry. Two boys on your team were making fun and laughing at a boy in front of them, he was the libero of your enemy team, Nishinoya Yuu

"..."

Although it was not very easy to notice, the libero was tense and seemed a little upset, embarrassed and even anxious. He made you angry, since the boys in your group didn't even play, and they laughed at his height