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アイドルマスター シンデレラガールズ スターライトステージ?
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Popularity Score: 2
This app was mentioned in 4 comments, with an average of 1.00 upvote
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It is a game. There is a AR mode in game where you can shot a photo on real life with in game model like this tweet: https://twitter.com/suzuya_kneeso/status/1060180026098765824
the full game name in japanese is アイドルマスター シンデレラガールズ スターライトステージ https://play.google.com/store/apps/details?id=jp.co.bandainamcoent.BNEI0242
its japanese region only so you may have to get the apk or installation from a site that can rip it.
edit: Here is also a guide to get the game and some translations. You may want to drop by their subreddit for the FAQs. Heres a thread about the AR stuff.
It also looks like a gacha game. So good luck on pulling a character you'd like.
Why wait on android?
Just go to the store and press "update" button.
Here's the link if you can't find the game:
https://play.google.com/store/apps/details?id=jp.co.bandainamcoent.BNEI0242
EDIT: fixed link lol