Kawagoe and I are together almost every day except sleeping at home at the same school. One day, at Kawagoe's suggestion, I decided to open a study camp. This is because Kawagoe's parents leave home on a trip. I thought that Kawagoe was purely studying for entrance exams, but when the training camp started, two classmate girls came. It's a mufufu attempt by Kawagoe, and I'm almost a virgin for the first time in 3P / 4P. It happened that I had the first experience of an orgy party ...