I think the story was about a [infirmary] sensei (seme) & a student (cutie Hs student -uke). Sensei likes cuties so when the student asked *what’s Love/sex (along those topics, I’m not to sure of the exact words), sensei offered to teach him — apparently w/ lewd stuff too. Then student graduated, end of relationship, years passed. But eventually student has now become a new sensei by the school, & reunited w/ infirmary sensei But Their positions were reversed (infirmary sensei = uke now). Because student became handsome & manly, & he said it’s his turn to satisfy infirmary sensei w/ all his teachings before. Happy ending.
Sorry, I don’t remember the title though..(I maybe wrong too) (●'◡'●)ノ

Hey, I have was reading a manga and I saw this page in this manga ( Obviously edited for advertisement) And I want to know what the manga is.. http://www.mangago.me/read-manga/breath/mh/v01/c003/38/