He was a fine arts teacher in his past life, a single dog all by himself. When he wasn't busy, he would watch anime and mystery-type works. As a result, after one sleep, he woke up to find himself transported to this world.,Out of Japan's 220,000 police officers, only 500 are professional investigators. This comparison alone shows the difficulty of passing such an exam.,(This is a chart from a post by the big boss of the Amuro Touya bar, about the promotion time of various types of police officers in Japan.)。