下流梗不存在的灰暗世界

Japan is a country that advocates sex culture. Some sex-related words are flooded in the streets of Japan. These phenomena are not beneficial to the growth of young people. So 16 years ago, the Japanese government promulgated the "Public Order, Good Morals, and Healthy Upbringing Law". Since then, all sex-related sentences have been banned. Sixteen years after the implementation of this law, the education of Japanese schools has undergone qualitative changes, and some schools known for their good discipline have become famous schools. The protagonist of the story, Okuma Tanukichi, is a high school student. He adores his beautiful senior sister Anna. After unremitting efforts, he finally got his wish and entered Anna's prestigious school with excellent discipline. But on the first day of school, he was treated as a pervert on the tram, but when he was most embarrassed, he met the obscene terrorist "Xueyuan Zhiqing". Xueyuan Zhiqing's attire was really unsightly. He wore girls' panties on his head and used a bath towel as a coat. Yukihara no Ao threatens Okuma Tanukichi that if he doesn't join them, he will reveal that he is a tram pervert. Okuma Tanukichi had no choice but to agree to join their organization