Roselia, a band from the BanG Dream project, stars in this animated music video for their song "Sprechchor." The video premiered on July 21, 2021 on the franchise's official YouTube channel. Later on, it was bundled as a bonus with the Blu-ray release of the film BanG Dream! Episode of Roselia II: Song I am, tying the promotional clip to Roselia's feature-length story.