Out of Japan's 220,000 police officers, only 500 are professional investigators. This comparison alone shows the difficulty of passing such an exam.,Perhaps it's because the dowry of grandmothers in this world includes a hereditary hot spring that can't be taken away,As a meticulous person, I can only say that I have done my best with this information. If there are any inaccuracies, please refer to the book as the standard for changes in the parallel world.。