Imai-sensei loves the face of a man who is trying to hold back and a cock that is about to cum. In the name of guidance, she tortures a male student who has poor grades because he masturbates too much, by controlling his ejaculation for about a month! Even though he can't jerk off, she whispers obscene words in his ear as if to lick him! The perverted female teacher feels incredible ecstasy at the face of the student who is suffering because he can't release the semen that keeps building up in his balls!