And the opposite is true too.
Plus add with them Sassy go go / Cheer up
and Who are you? School 2015.
as the four of them revolve around a high school romance comedy drama with some love triangles maybe although it wasn't really a love triangle in school 2017.
But it is just that hi school love on has some supernature genre which is extra but it's still amazing.
and also the four of them has the concept of bulling in them which make the drama more intense.
These 4 dramas would be your favorites if you like the high school - youth - romance - comedy type of dramas,like really i adoreee them!
School 2013 is great too but there is no romance in it so i didn't mention it but it shows what hardships friends might face and so on so if romance is not the main genre that you're looking for, you may check out this one too as the bromance in it between Lee Jong Suk and Kim Woo Bin is so cutee.