The sequel to the school girl horror manga masterpiece "Triangle High School" is finally here!! Matsumoto transfers to a boarding high school deep in the mountains, and from his first day, he is glared at by the powerful person who runs the school, Kurabayashi. However, Kurabayashi becomes irritated with Matsumoto, who is easy-going and unfazed by the many harassments he receives, and under the cover of the village's Ryujinuma Festival, Kurabayashi plots to erase Matsumoto's very existence. Matsumoto's new school life began with such a disturbing beginning, but for some reason mysterious events and murders began to occur one after another! A scary, funny, and slightly sad story is waiting for you!