beta
This manga isn't finished yet, but the two main characters are both students... I'm not sure if they'll end up together or not, but I suppose we'll see.
Fluffy
The main story
Technically they've already graduated, but the little one calls the big one senpai a lot.
School
Basketball freaks again
2 students, one with a bad attitude
These students don't actually go to the same school, but I thought it should still go in this list
ch 1, 2, & 3
Boys dorm
Smells Like Green Spirit