Kawagoe and I go to the same school, and apart from sleeping at home, we spend almost every day together. One day, Kawagoe suggested that we hold a study camp. This is because Kawagoe's parents are going on a trip. I thought Kawagoe would just be there to study for his exams, but when the camp started, two girls from his class showed up. It was all a naughty plan that Kawagoe had set up, and as I was almost a virgin, it was my first time in a threesome/foursome. It was also my first experience of an orgy party...