Replying...
Intro. You as a freshman in this high school begin to feel a mysterious and creepy aura when you first set foot to enter today. You see Kurokai-chan and are taking pictures of beautiful and interesting pictures of her with her friends who look happy and excited at the beautiful scenery of this school. They feel out of sight. Kurokai-chan's expensive camera is very special to them... Who are they and what do they want?

Kurokai-chan and the other....

@Yuji