Otona Keikenchi (Yaoi) manga
http://www.mangago.zone/read-manga/otona_keikenchi/mf/v01/c001/
I don't know if you mean this one but I think it kinda went how you described the beginning.
if is not im sorry
That's ok ╮(￣▽￣)╭
This kind of reminds me of King and Prince, but they don't kiss in the classroom :D
If you want to read it, here is the link: http://www.mangago.zone/read-manga/king_prince/
what about "jibun katte."
(づ￣ ³￣)づ
Oh I read that one its called window beyond window!!!
Close but no ╮(￣▽￣)╭
aw damn the plot went with it did u find wt it is called(▰˘◡˘▰)
Does anyone know this one manga that this popular guy steals all of his girlfriends but in reality he fell for him ╮(￣▽￣)╭ I really liked to know cuz he kisses him in his classroom