Really slutty bls. Like literally sex driven couples
Maybe this one fits your request?: https://www.mangago.me/read-manga/hitori_h_online/
I found this one list of cute school bxg romances and can't find it
I’m not sure if it’s mine, but if you’re looking for cure stuff, here is my list
https://www.mangago.me/home/mangalist/1437118/
Other than chap 4 its a pretty nice story