what manga is it? http://www.mangago.zone/read-manga/na_no_ni_chigira_kun_ga_amasugiru/u...

My fist thought was "Nijiiro days" but then I looked carefully it wasn't it...so my best guess is that that blond dude is indeed from Nijiiro days but the rest of them are maybe from different mangas...but as I said I'm not sure ....sorry

it's this one..
http://www.mangago.zone/read-manga/koi_wo_shiranai_bokutachi_wa/

thank you so much

Welcome!!