Responses
It’s not high school, but I think it’s what you’re looking for.
Or maybe this one? http://www.mangago.zone/read-manga/ii_ko_ii_ko_shiteageru/ ... MC falls asleep on a train, leaning against someone else, who he thinks is much older than him (he looks much older), but he's a student at the same school as him.
Can't remeber the name of this manga where the uke has a baby face and the seme has an older face and they are in highschool, I'red it a long time ago, but it wasn't finish then so I was hoping to see if it is finished.