Sensei! Koi No Shitsumon Desu!
It followed all the rules. The adult teacher did not initiate physical contact with the student, etc., etc.. He waited until graduation and adulthood. But the story is lifeless and dull as fuck, even with potentially cute characters. That's because it's written according to rule. It might as well have had a good social mores stamp of approval, but it doesn't make it any more interesting to read. I mean, seriously! Did they have some kind of committee meeting to decide what was proper to include? It's like the story was written by a committee.
Tameiki No Ondo
Two very different one-shots. (1) A highschooler blackmails his tutor into sex by threatening to reveal that he has a crush on his older brother. This one has a spectacular plot twist and is very engrossing. (2) Zany comedy about a highschooler who spends so much time chasing after an unrequited love, he completely neglects to notice someone who is in love with him. The first story is much more absorbing than the second, but it doesn't look as though this collection of short stories is going to be finished since it hasn't been updated in forever.
Hitotsu Futatsu Himitsu