My perverted S-type teacher Mr. Hasegawa has been masturbating every night while fantasizing about binding his student Himekawa. One day, he invites her to his home under the guise of academic guidance and intentionally leaves rope where she can see it. She notices it out of the corner of her eye, confirming his suspicion that she shares his bondage desires. He skillfully coaxes her into submission, initially resisted by her but her pussy is already soaking wet. Through his 'punishment', her deviant side accelerates even further.

担任の細田は緊縛願望のある変態S男で、毎晩教え子の姫咲を縛る妄想で自慰行為をしている。ある日、彼は進路指導と称し彼女を自宅に呼び寄せ、あえて目につく所に縄を置くと、彼女はそれをチラチラ見ていた。その姿を見て、細田は彼女に‘緊縛願望’があることを確信し、言葉巧みに緊縛へと誘導する。初めは嫌がる彼女だが、その反面マンコはビショ濡れに。そこから細田の‘お仕置き‘を通して、彼女の変態性はさらに加速する。