Sarina Momonaga's long-awaited first bondage release! Two years ago, Marika became the secretary of Oshita, the president of a design company, due to her father's debt. Marika is usually a high-class woman in the company and behaves coolly, but at night she serves Oshita like a sex slave. In the midst of all this, she begins to open up to Murata, who is said to be a promising young man in the company...