As an addition to its multimedia project Onsen Musume, Enbound on 21 August 2017 announced that it will be releasing a smartphone game which goes by the name Onsen Musume: Yunohana Kore Kushon.
https://www.youtube.com/watch?v=YEX1t1ysA6g
No details as to what the game will be like were disclosed, so your guess is as good as ours. For context purposes, Onsen Musume refers to five female idol groups, SPRiNGS, AKATSUKI, LUSH STAR, Adhara, and petit corolla, all of whom personify the many hot springs located in Japan. In case you are wondering why, the purpose of the project is to essentially promote Japanese hot spring culture. As the focus is also centred around the girls being idols, Onsen Musume has a total of two albums under its belt so far, which you can expect to grow.
Be sure to drop by and look around the teaser site which is now open to savour the cute artwork.