Additional cast members for the television series Kitsutsuki Tanteidokoro were announced through the anime's official Twitter account on Wednesday. In addition, a promotional video was also released, revealing the opening theme "Honjitsu mo Makoto ni Hare Tenya" sung by Bokusui Wakayama's voice actor Makoto Furukawa and a broadcast date of April 13 on Tokyo MS, BS Fuji, and CS Family Theater. The ending song "Gondola no Uta" will be sung by NOW ON AIR.
A ghost was seen on the 12th floor of the Asakusa Juunikai building. A newspaper article featuring the sighting brought together Takuboku Ishikawa, who runs a private detective agency to support his family, and his assistant Kyousuke Kindaichi to solve the case.
Previous cast members Takahiro Sakurai (Kyousuke Kindaichi) and Shintaro Asanuma (Takuboku Ishikawa) were announced in October of last year. This announcement also revealed chief director Shinpei Ezaki (Hanebado! director) at LIDENFILMS, director Tomoe Makino (Beelzebub-jou no Okinimesu mama. episode director), character designer Shuuichi Hara (Lost Song, Heart no Kuni no Alice: Wonderful Wonder World), series composition artist Taku Kishimoto (Haikyuu!!), and music by MONACA (Ryuugajou Nanana no Maizoukin, Servant x Service).