There was literally chapter where they sat next to each other in class or something and the whole class + teacher were like "GO FLIRT WITH EACH OTHER AFTER THE LESSON, YOU BAKAS"
This sure has confused me I didn't know they were hiding their relationship? Like damn they've met each other's parents at this point haven't they?
I one hundred percent thought the whole school (or the ones who care to know) knew they were dating already.