#1 Once best friends, big brother Akeyo and his sister Akane are estranged. When Akeyo's sleazy friend shows him a picture of a pretty cosplayer, he recognizes the girl. It's Akane.Sex at school! Sex at the convention! Sex in town! Exhibition everywhere!
#2 First she see a girl masturbating down a side street after school. Several days later at an anime event she peeks into a cosplayer booth... Saori is realizing she might be a closet exhibitionist. When she cosplays in risque outfits, the fetish takes over---
#3 : "She discovered a thrill the first time she cosplayed. Not for the outfit, but the fact she was flaunting it. Little by little, her inhibitions fell away, like articles of clothing..."