Eikawa Noa is a quiet girl at school, but inside she is a super sadist. The person Eikawa secretly has feelings for is Minamoto-kun, the most bullied kid in school. She wants to confess her feelings to him and go out with him, but she is worried that he might dislike her for being a sadist. So she comes up with the idea of ​​turning Minamoto-kun into a complete masochist and then confessing her feelings to him. Eikawa blindfolds the boy so he doesn't know it's her, and starts training him...