Katsumi seemed to be less lively that day. She sluggishly went on with her day, never really saying much about it. Her eyes tended to droop more and sniffles could be heard whenever the young girl was around.
It didn't seem to be that bad until a few hours had passed. She started coughing and refusing to eat at that point.
To tie everything up, she felt awful. The thing was, she didn't want to complain to her parents. She didn't want to admit to something that could be perceived as weakness.
That's why she was startled when she saw one of them in front of her.