“Are you prepared to fully devote yourselves to Roselia?”
To reach the stage of “FES.”, Yukina Minato decides to form a band.
Each holding their own convictions, the members of the band come together.
The five girls now begin their journey to the top as Roselia …
This is the story of their “promise” made to each other, from the start of the band to their challenge towards FUTURE WORLD FES!
(Source: Official Site)
Alternative Titles: BanG Dream! Movie: Episode of Roselia – I: Yakusoku, Gekijouban Bang Dream! Episode of Roselia, 劇場版 BanG Dream! Episode of Roselia I:約束