Shinkyoku Soukai Polyphonica: The Black  

Polyphonica Black, 神曲奏界ポリフォニカ ザ・ブラック

The "Black" version of Polyphonica has been released as a hard-boiled detective comic. In this metropolis, law enforcement officers have teamed up with spirits to solve crimes and formed the "Spirits of the Dead" or "Ghost" Division. A murder took place in a peaceful residential area, and the victim's daughter disappeared without a trace, leaving behind only confusion. The spirit that possessed the victim was named "Leon," but is he truly a criminal?