• China
    10 July 2015
  • Japan
    19 March 2016
    (Tokyo Anime Award Festival)
  • Russia
    19 March 2016
  • USA
    26 May 2016
    (TV premiere)
  • France
    14 June 2016
    (Annecy International Animation Film Festival)
  • Australia
    16 June 2016
  • USA
    29 July 2016
  • Japan
    31 July 2016
    (Japan-China-Korea Student Animation Festival)
  • Kuwait
    25 August 2016
  • Japan
    5 November 2016
    (Kyoto Historica International Film Festival)
  • Estonia
    16 December 2016
  • Turkey
    19 May 2017
  • Portugal
    15 June 2017
  • South Korea
    2 November 2017
  • Japan
    13 January 2018
  • Italy
    6 September 2018