Ms. Mina, who is popular not only with students but also with teachers for her bright and energetic personality and good looks, succeeds in developing a slightly unusual study method because she is serious. Here's how... The idea is to release the sperm accumulated in the gold balls of adolescent male students and concentrate on studying. Moreover, it is said that it is most effective to fire continuously to thoroughly empty the inside of the testicles. - In order to check the effect immediately, while bouncing the huge breasts & big butt body that is too lascivious, I use the student as a test bench and squeeze it!