Sex ga Suki de Suki de Daisuki na Classmate no Ano Musume. Sano Taichi, a student in need of money, applies for a job as a JAV production assistant. Upon arriving at the location, he is surprised to meet his popular classmate Hiiragi Kanna. Kanna, the prettiest girl in school, decides to participate in this job despite knowing that it is a JAV video production, citing the need to gain experience. Taichi, who has feelings for Kanna, is hesitant at first but goes ahead with the job anyway. When the lead actor has an accident, Taichi is forced to become his replacement, while Kanna becomes his co-star.