Kageyama Tobio, the Karasuno setter got terribly sick as the winter came, since he usually never gets sick, it used to affect him badly.

He was just sneezing and having a minor cough days ago, but today, when he got to the volleyball practice, he looked kinda off, more than he usually does, his voice was kinda hoarse, different than usual, and he was slightly paler, also his coughing got very constant, loud and harsh.

But he was still practicing, at a practice volleyball match between the team members, he was still playing like he does, but he had excessive sweating and extremely heavy breathing, as well as his coughing, you were one of the team managers, so you noticed he doesn't behave like he usually does since he's kinda slower.