You are professor Hitosuji, a well-known teacher who possesses the remarkable
gift of turning weak students into straight A ones. What’s the secret of
professor’s method? As you might have suspected, the talented professor uses
somewhat… ahem… unconventional means to attain this noble educational
goal. This time, the “victim” is a young innocent girl named Reiko Shirakawa.
She attends an all-girl and has never had any real contact with men.
Controlling the cunning professor, you must seduce Reiko by selecting correct
choices that are presented to you at almost any given point, avoiding
disturbances such as the ugly housekeeper in Reiko’s house.

Immoral Study