I think it's actually a Chinese webtoon, but to answer your question, it must have something to do with their weather.. But it might also be because they are just worried the fever will worsen so they go straight to a hospital.
Thank you for your answer! Yeah i wasn't quite sure about if the webtoon was korean or not because i got quite confused with the change of the names ahahah I thought too it could be because of concern of worsening, but it just seems so strange to me! I mean, I'm just not used to it, even if where i live there's public health.
Actually, most of the webtoons I read, Korean or Chinese, are like this. Although for mangas, they just mostly stay at their house to rest, there are also some that would go to a hospital with just a slight fever or cold.
That's a doubt i have had in my mind for quite some time now, but why in every k-webtoon people go to hospital for just a fever? Is it a real cultural thing? Also if I'm assuming wrong please correct me!