Synopsis

Shinrei Tantei Yakumo (心霊探偵 八雲 / Psychic Detective Yakumo) is a light novel series written by author Manabu Kaminaga with illustrations done by Katoh Akatsuki in Nihon Bungeisha publication and later in the Kadokawa Bunko publication with cover arts done by Yasushi Suzuki.
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From: Baka-Tsuki (BT): fan translation community that hosts translations for light novel.