Hyakki Tsurezure Bukuro

It’s 1950s Tokyo, and only the Rose Cross Detective Agency dares to tackle cases the police refuse to touch. Enokizu Reijirou is an eccentric private-eye with psychic abilities, while Chuuzenji Akihiko is a surly used book store owner and part-time onmyouji with an encylopaedic knowledge of obscure supernatural trivia. Together with their associates, they seek justice for the victims of various odd crimes.

Stand-alone side story to the Kyougokudou series, which begins with Ubume no Natsu.