Re:Zero x Bakuretsu Monster Collaboration

Stars 17 December 2018.

Emilia, Rem, Ram as Gacha Char.
Get 3* Petelgeuse from Event.
Gacha char.can evolve to 5*. Petelgeuse to 4*.

iOS: https://itunes.apple.com/jp/app/id1337593608
Android: https://play.google.com/store/apps/details?id=jp.colopl.bmonster