Read 2.5 Dimensional Seduction Manga:
Okumura, is the president of the manga club and the typical otaku who loves 2D girls and hates 3D. One day a girl named Amano Lilysa decides to join the manga club, but what Okumura doesn't know is that this girl likes to wear erotic cosplays. So what will happen when Lilysa decides to wear an erotic cosplay while asking Okumura to take pictures of her?