is a Japanese online novel by Natural-Rain. It was originally posted online in 2004, and was published in June 2012 by East Press. An anime television series adaptation by Drop aired from July 12 to September 27, 2017. The series is entirely directed and animated by Naoya Ishikawa.
An anime television series adaptation by Drop aired from July 12 to September 27, 2017. The series is entirely directed and animated by Naoya Ishikawa. The opening theme is and the ending theme is , both performed by former SKE48 member Aki Deguchi. It was streamed exclusively on Amazon Prime Video.