細江慎治
The game was directed and written by series creator Kotaro Uchikoshi, and features music by Shinji Hosoe and character designs by Rui Tomono. Uchikoshi had started planning the game's story in 2012, but the development was put on hiatus due to the commercial failure of the series in Japan. In 2015, development was announced to have resumed in response to high demand from the series' fan base. The game was positively received by critics.