|Team B 1st Stage "spectrum"|
|Senshuuraku||To be announced|
spectrum is Team B's first stage in the new era. The stage's underlying theme are "Social Issues".
- M05. ＃FirstWorldProblems / Amaya Jia, Shimazaki Haruka the 11th, Tsubasa Diana
- M06. Hajimete Deatta Toki no Shortcake (初めて出会った時のショートケーク) / Inoue Megumi, Suzuno Sakura, Kasumi Yuuna, Ayana Elise
- M07. callomania (コーロマニア) / Mion Espoir, Nakai Rika the 15th, Kuramochi Asuka the 13th, Amaya Jia
- M08. I have a dream / Harune Diamond, Kodama Haruka the 8th, Emily Silver
- M09. the same / Kashita Miyagi, Miyabi Honoka & backdancers
Zenza Girls: Murasaki Aoi, Shiratama Mayu
Team B: Kuramochi Asuka the 13th, Shimazaki Haruka the 11th, Kodama Haruka the 8th, Nakai Rika the 15th, Inoue Megumi, Suzuno Sakura, Harune Diamond, Miyabi Honoka, Kashita Miyagi, Tsubasa Diana, Mion Espoir, Emily Silver, Amaya Jia, Akiba Airi, Kasumi Yuuna, Ayana Elise
- Unlike on A2 and K2 which both started around the same time, B1's main song is the final song to be performed.
- B1 has a total of eight front girls - who were selected based on their activity around the debut of the new teams.
- All of them center the songs of the stage. With the exception of Elise and Yuuna, all have a solo and WCenter. Elise and Yuuna have, due to being the youngest front girls, only two WCenters.
- Each uniform has stripes on it that slowly change colour throughout the songs, except for the final song where they take on rainbow colours.