Kana and her husband have been married and happily living together for three years. Her husband works at an advertising company. Today, the famous photographer Takumoto Otani agreed to meet with department head Ozawa, who brought her husband along to welcome Otani. Otani agreed to take photos for the company on one condition: the model must be a married woman with no experience in photography. Department head Ozawa immediately suggested Kana, and after seeing her photos on her husband's phone, the photographer wanted to shoot with her, and Ozawa instantly agreed despite Kana's husband refusing. Kana agreed in order to help her husband. On the day of the shoot, they both arrived an hour late, making the photographer wait a long time. The photo shoot did not go smoothly as this photographer wanted Kana to take off her outer clothes and even her underwear, posing nude in front of the camera! Kana's husband firmly disagreed, but under pressure from the department head, he felt helpless. Kana also agreed for the sake of her husband. Until the photographer called the department head in and took photos naked with Kana, her husband couldn't stand it and was kicked out. She and the department head gradually had more intimate actions, causing Kana to slowly step onto an irreversible path...