WHY would you want to know what happened to the creepy teacher? If we know what happens to him, this means that he came back to the school and one way or another Azusa has 90% chance of being raped.
How the manga is organized:
The story is about Azusa and Karino (main couple). Along the way there are side stories that add to the main story like Senzaki's & Karino's brother's where you can see the kind of environnement Karino grew up into etc...
God damn it! I want to find out what's happening with the creepy teacher. The pacing/organization of this manga is so weird