What will Japan's education and medical care be like in 20 years' time? The problem of male herbivores and declining birthrates, which is already a serious issue in the present day, will be even more serious in the Mirai, and the government will take surprising measures! ! In schools, practical education will be given under the name of open sex education, and in hospitals, there will be dirty examinations and training for semen collection. If it were a Mirai like this, I would want to go there even if I had to travel back in time! Three works about the naughty Mirai are included.