https://idolmaster-official.jp/news/01_15894

AS collaboration with the app release of Buzz Bank on 7/1 until the end of October. You can set idols on your bank account screen to see those numbers drain away as you try to get the merchandise.

https://www.bk.mufg.jp/kouza/baas/lp/buzzbank/001/index.html

The new outfit is called "Loudness Punk".