After overcoming numerous tribulations, the members of Roselia promised to appear on FUTURE WORLD FES. It is now Autumn... Through writing the lyrics of "Promise," Lisa has matured. Watching the change of color in the autumn leaves, Yukina and Sayo expressed their resolve in a picture letter to their future selves. Driven by the wish to do something for Roselia, Rinko has started to compose a new song. "The remaining quests are the contest, the tournament, and FUTURE WORLD FES..." Reflecting on their goals, Ako starts to feel anxious. What view will the five of them see beyond FUTURE WORLD FES?
Unfortunately the movie BanG Dream! Episode of Roselia II: Song I am. is not yet available on HBO Max.
| Sound | Yasushi Inomata | Sound Effects |
| Writing | Yuniko Ayana | Series Composition |
| Visual Effects | Motomu Endo | CGI Director |
| Visual Effects | Junko Kitagawa | Color Designer |
| Directing | Kohdai Kakimoto | Director |
| Camera | Mari Inoue | Director of Photography |
| Writing | Kou Nakamura | Original Story |
| Production | Takaaki Kidani | Executive Producer |
| Directing | Atsushi Mimura | Director |
| Editing | Tomomi Umetsu | Editor |
| Sound | Junpei Fujita | Music Producer |
| Sound | Noriyasu Agematsu | Music Producer |
| Visual Effects | Kazuyuki Ueda | Character Designer |
| Art | Hiroki Makino | Art Direction |
| Writing | Kohdai Kakimoto | Screenplay |
| Sound | Satoki Iida | Sound Director |
