Fudegaki Soft - Saimin Gakuen 3-nensei

Preview

Censorship: Yes
Developer/publisher: Fudegaki Soft
Platform: PC/Windows
Edition type: Original (license)
language: Japanese

The protagonist is a student of a third rate university with an awkward personality and sullen looks. His interests are deviant as well, but as an adult he has no shame about this. He acts like a stalker, and sneakily digs through the trash in the middle of the night. Naturally he's avoided by everyone around him.
At one point, he picked something like a toy mirror out of the trash. Wondering if it might not have some monetary value he began to fiddle with it, and unexpectedly it became clear it was a device for inducing .
Then, knowing it would normally be entirely impossible, using that mirror he became a student teacher in an all-girls school. Through this, the protagonist set about satisfying his own desires to his heart's content.