[Hashida Mamoru] Punishment (Aimai Kanin) [Yxplore]

Little Anna Saeki keeps forgetting her supplies, and her teacher keeps her after class for a hands-on spanking that quickly becomes a very different kind of lesson. What starts as tearful discipline bent over a school desk turns into a secret arrangement she can't quit, one she feeds by tying herself up in rope with a vibrator before admitting she still craves sensei's strict punishment. A teasing one-shot about a misbehaving schoolgirl who learns exactly how far she'll go to stay behind after the bell.