Having just bought a new camera, Sakura Miura's brother is happy as he prepares to fulfill his long-held dream of photographing his sister. Her photos are very special, they were taken at various times by the lewd brother who secretly stole them when his sister accidentally exposed his seductive breasts and this is also what he uses to masturbate every night. Gradually, the brother also realized that he had feelings for his sister, and realized that he couldn't continue masturbating like this, so he decided to express his desire to her. The sister who is in high school is very innocent and pure, so she is easily seduced by her brother and then the incest between the two begins to occur from here...