Starly Girls: Episode Starsia is a game developed by Aeria Games. The game is due out in Japan by this year announced by their publisher Kadokawa Games. Starly Girls: Episode Starsia is a “next generation training simulation” game for the iOS and Android. The game is free-to-play with some micro-transactions.
In the game, you are the captain of a super-gravity warship named Asterism. Together with your vice captain and Star Girls (Hoshi Musime), also known as “Starly Girls”, operate cool looking giant mechas known as “G Gears”. Their goal? To fight against fate to take back the shine of the stars; they said.
For more information you can check out their official webpage here.