Square Enix announced a new Idol smartphone game in Japan called Aozora Under Girls! which will be available in 2017 in Japan on iOS and Android! The game according to Square will be a Youth x Idol x Battle game which means you have to take care the girls’ everyday life, with their idol career and you have to do live stage battles against the other team like in the IMAS games.
It should be noted the Square Enix going to brings the game to the ANIMEJAPAN 2017 which will be held on March 25, 26 in Japan and there you can try it for free. Until that check out the first official promotion video and stay tuned for more information!