Poppin'Party appears in a music video for the song Introduction, directed by Seiya Miyajima. Ayase, the composer behind YOASOBI, wrote both the music and the lyrics, and the track marks the first artist collaboration project in the BanG Dream! franchise. The video centers on the members going about their daily lives as high school girls. It uses character designs drawn fresh for the song, so they look different from the group's usual appearance.