Aoi Aoyama is a 174cm tall, I-cup mother of one. She is struggling to tell her son that her mother is an adult video actress, so a coming-out project is proposed to her! However, it is an incest experiment project, and the mother and son go to a boob pub, a soapland, and an adult video shooting site, and get work experience right in front of her son! Will the coming-out be a success, and will the incest be realized?