Shinrei Tantei Yakumo: Initial File

The series sees mathematician Gakuto Mikoshiba, from Kaminaga's other series Kakuritsu Sōsa-ka (Probability Investigator), battle wits with Yakumo Saito from the Psychic Detective Yakumo series. (Source: Anime News Network)

From Kadokawa Shoten: Haruka, consulted by a friend who ran into a ghost at school, goes to the Movie Research Circle to see a man with mysterious powers. However, the person who meets her there is an affected young man with terrible bed hair and sleepy eyes. What does Haruka consult him about? A confinement and murder case at a women's university and a false suicide case. The great detective who can see the spirits of the dead, Saitou Yakumo, takes these cases on in this astoundingly high-speed spiritual mystery.