Hahaoya Saimin Nikki ~Tamaki Sachiko no Ganbou~

Sachiko Tamaki, the mother of the protagonist, is devoted to his education, and her goal is to turn him into an elite. Sachiko had originally intended to become a bureaucrat, but her marriage has closed the door to that goal.

Sachiko has been giving him a gifted education since he was a child. However, the overbearing, restricting, and simply painful life he leads fosters in him anger toward his mother and a distorted desire to make amends for his past resentment.

The protagonist learns a special hypnotism from his bad friends and decides to use it to take revenge on his mother.
What awaits him in the end?

[From official site]