The game inspired a stage play that debuted at The Galaxy Theatre in Tokyo last summer, and also ran in Kyoto before ending its run at The Galaxy Theatre last November.
The app also ranked #2 in iOS game sales in Japan two times on January 9 and January 10, 2018.
The A3! game debuted for smartphones in January 2017, reaching two million downloads within a month of its debut.
“Season Spring & Summer” will run until March 2020, and “Season Autumn & Winter” will run from July to September 2020.