SSNI-847 Aika Yumeno is stuck with her annoying boss.

Aika grew up with wealthy parents without encountering any inconveniences. At her parents' suggestion, she married a man who lived far away and led a mundane life. One day, she was taught about 'papa katsu' by her classmates and met a man who showed some interest in her. While she felt guilty, she was also lifted by her own sharp discomfort. When she met that man again, the kind man tied Aika up with a rope. At first, she found it enjoyable and wanted to be stimulated a bit, but over time, it became an addiction.