The girls' idol label "Three Nine," specializing in beautiful young girls, launches a project to discover a cute and energetic current female college student gravure idol! The producer scouts Aya Mamiya, who works at a popular cosplay cafe he frequently visits, boldly approaching her despite the risk of being banned from the shop. Aya, who loves cosplaying, secretly agrees via DM under the condition that "as long as the shop doesn't find out, I'm okay with it," finalizing the deal. On the shoot day, Aya arrives at the studio looking slightly nervous—only to be handed an unexpectedly tiny bikini. Though visibly shocked at first, she agrees to the producer's persuasion and proceeds with the shoot, maintaining a lovely and graceful presence. As if steeling herself for what's to come, she strikes bright, bold poses even more daring than those she uses when soliciting customers on the street, leading to a huge success. Before this DVD's release, it seems the shop owner found out about her appearance, but thanks to Aya's stunning looks and popularity, she received only a stern warning and ultimately no serious trouble occurred.