Bushiroad announced today that BanG Dream! Episode of Roselia I: Yakusoku (Promise) is set for a release in Japan on April 23, 2021. It is the first part of the two-part film series focusing on the members of Roselia. Its second part "II: Song i am." is also set to be released sometime in 2021.  

The five members of Roselia are - Yukina Minato (CV: Aina Aiba), Sayo Hikawa (Haruka Kudo), Lisa Imai (Yuki Nakashima), Ako Udagawa (Megu Sakuragawa), and Rinko Shirokane (Kanon Shizaki).

Introduction:

"Are you ready to risk everything for Roselia?"

Yukina Minato decides to form a band in order to participate in the "fes". She gathers with the members who have their own hidden feelings. The five members aim for the heights as Roselia--.

This is the story of their "promise" from their formation to the challenge to FUTURE WORLD FES.

"BanG Dream! Episode of Roselia - I: Yakusoku / II: Song i am."

 https://roselia-movie.bang-dream.com/

• Original story: Bushiroad 
• Original script: Craft Egg 
• Anime production Sanjigen
• Distribution: Bushiroad 
• General director: Koudai Kakimoto (BanG Dream! 2nd & 3rd Season) 
• Director: Atsushi Mimira from Sanjigen (BanG Dream! 2nd & 3rd Season CG supervisor) 
• Series composition: Yuniko Ayana 
• Screenplay: Koudai Kakimoto, Midori Goto from Sanjigen 
• Music: Elements Garden

Source: Bushiroad press release

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