Ep. 21: Kaguya weighs studying abroad in New York against her bond with Sakuya
Aired on August 22, 2019

21
Kaguya mentors younger students and views an advertisement for Karen's Idol school in New York City as a chance to grow and become a better mentor. However, studying abroad means being apart from Sakuya for the first time in her life, causing her to worry if Sakuya can take care of herself in her absence. The situation becomes more complicated when the twins discover that their manager Hariu appears to be romantically involved with Tamaki.
Episodes
- Ep. 17 · Wakaba faces hesitation before her long-awaited idol debut
- Ep. 18 · Shocking News from Home Leads to a Festival Plan Amidst Racing Duties
- Ep. 19 · The idols enjoy a well-deserved break from work at the beach
- Ep. 20 · Alicia struggles with self-doubt while reforming I Believe with Hibiki's help
- Ep. 21 · Kaguya weighs studying abroad in New York against her bond with Sakuya
- Ep. 22 · Aine and Mio invite idols for the Jeweling Festival while worrying about Karen and Mirai's return
- Ep. 23 · The Night Before the Jeweling Festival
- Ep. 24 · A Stage Beyond Time
- Ep. 25 · Jeweling Festival Continues Amidst Blizzard as Idols Seek Performance Solution