Sixteen years ago, Japan passed the "Law on the Development of Public Order and Morals". From then on, all information and words related to "sex" disappeared from the world, and the quality of citizens was greatly improved, and the whole country became extremely healthy and fresh. Tokioka Academy is a famous school known nationwide for its strict discipline, and ordinary high school student Okuma Tanuki (voiced by Kobayashi Yusuke) is about to start a new campus life here. An accident caused Tanuki to be involved in the conspiracy of an evil terrorist organization called "SOX". The leader of the organization, Huacheng Ayame (voiced by Shizuka Ishigami), turned out to be the vice president of the Tokioka Academy Student Union! Saotome Otome (voiced by Arai Satomi), who looks young and mature, and Kitoko Otome (voiced by Horie Yui), who has a dark nature that is extremely inconsistent with her cute appearance. Surrounded by these "terrorists", what kind of earth-shaking changes will Tanuki's life undergo?