Yoshitaka Yasuda (Tsugumomo OVA chief animation director, Nil Admirari no Tenbin main animator) will be directing the series and providing character designs for the series at Zero-G. Daiji Iwanaga (Doukyonin wa Hiza, Tokidoki, Atama no Ue. episode director) is credited as chief director and Ayumi Sekine (IDOLiSH7) is in charge of series composition.
Yamashita began serializing the supernatural mystery manga in Magazine Be x Boy in March 2013 and concluded it in December. Libre published the tenth and final compiled volume on March 10.
VIZ Media licensed Sankaku Mado no Sotogawa wa Yoru in English under their SuBLime imprint in September 2014 and shipped the eighth volume on July 27.