You must remember the school curriculum and answer the most interesting questions on the topic of the lesson, just remember that it is not so simple, because after the correct answer your game teacher will remove one piece of clothing from himself.
My step sisters - erotic visual novel, which accommodates all the secret dreams of every guy. In the game you can improve your communication, flirting skills and get to know female nature better.
What kind of game is it? And everything is very simple, a small simulator of a pleasant time with your waifu. Play tic-tac-toe with her, as a keepsake game, or look hard for different colors.