The 1910s…
Army Seiho Middle School, a school founded by the Imperial Japanese Army.
This is a special organization whose purpose is to find and research supernatural phenomena that can be put to military use.

Iwamoto Kodo, a third-year student at the school, is sent all across the country to investigate these phenomena. But everywhere he goes, he meets “espers” with special powers…?!

Iwamoto encounters all kinds of espers and strange things…
What is his true purpose in offering them “letters of recommendation” for them to go to the school?
Strange events and supernatural phenomenon, and the existence of “espers”…
Thus begins a supernatural tale that sheds light on the era they lived in!