Based on the visual novel of the same name Cosplay Roshutsu Kenkyūkai by Pinpoint. The story of a worker at a coffee shop in Akihabara. Hinata Aya receives an invitation to a public Cosplay in the mail, and she must be dressed as a maid. And if she comes, she will receive any amount of money for the event, and given that she is constantly having money problems, she certainly agrees. In addition to everything, she is also an exhibitionist. And at the event, evil otaku tell in actions about the “right” cosplay…