I'm an idiot who can't memorize formulas at all. A tutor who can't stand to see me like that proposes a novel official memorization method using boobs and buttocks! Moreover, if you answer correctly, you will be rewarded with a naughty reward! Thanks to you, I can only get excited! Of course, the effect is outstanding, and just by remembering the naughty places on the teacher's body, the formula comes to mind! Furthermore, if you get a good score in the test, you will get a bonus that is too erotic! My grades are growing steadily and the erotic deviation value is also exploding! This memorization method is the best!