As I explained in an older post (https://otakutokyojp.blogspot.jp/2017/08/a-very-poopular-attraction.html), the Japanese love to put a scatological twist on any aspect of life, be it education, science or crime. Take, for instance, Oshiri Tantei (Butt Detective), a gentlemanly Sherlock Holmesian detective who solves the strangest crimes. Not only he is a deep thinker; he's an action man who stops the bad guys by... farting in their face.