Muhyo & Roji's Bureau of Supernatural Investigation

Magical law exists to bestow punishment for crimes committed by spirits. Muhyo Toru, an executor of magical law, and his assistant, Kusano Jiro, work at the Muhyo Bureau of Supernatural Investigation. One day, a girl named Rie comes to them for a consultation about a spirit inhabiting the local train station, which she suspects is the spirits of her late friend Taeko.

Kenji visits a spooky shrine on the outskirts of town to prove to his friends that there's no such thing as ghosts... and he rips off a talisman that had been stuck on the shrine door. Later, Kenji brings his sister figure Nana to the Bureau, and Muhyo tells Nana that all the pictures she's shown him are ghost photos. Nana is enraged by his claim, but then...

Muhyo and Roji visit the home of Shiratori Aya, a client who says a black shadow has been playing her piano at 2:00 AM every night. Muhyo concludes that the shadow is a vengeful spirit born from countless people who envy Aya's talent, but in fact... Later, a package arrives at the bureau for Roji, containing a "magic-sealing pen" and an invitation to take an exam for a promotion to first-class secretary. Then Nana enters with a photo she took of a spirit on a pedestrian bridge...