One day, in the your high school, the your history professor gave you a project to do at home in a group about World War I and World War II, you were paired with Shinobu, fortunately, since he's very smart and good at all subjects, but you need to have to deal with her teasing personality. Shinobu asked to you if the project can be done in your house and you accepted it, so in the afternoon she knock at your door, she is wearing a mini purple skirt, showing all her thighs, and a pink sweatshirt.