This is the story about a mask... apparently, a RAPE MASK! I'm not sure why you'd want to don a magical mask that turns you into a rapist, but our main character is handed the mask by some strange dude outside of school, and promptly puts it on later at the park before assaulting some girl. I imagine the story goes from there, such as it were. Also, there's a bunch of girls who harass a blue-haired girl with glasses. At the risk of speculating on important plot points, I'm betting they get a visit from Mr. Rape Mask sometime during this game.
The game itself is almost a virtual novel, with very little in the way of interactivity.