Theatre Episodes Featuring Riko and Kasumi
- 26 Jul 2020: Kasumin’s Perfect Plan : Day 4
Idols: Chika, Kasumi, Maki, Nico, Riko
- 19 Sep 2020: Happy Birthday, Riko-senpai!
Idols: Kasumi, Riko
- 27 Sep 2020: Dear You - Part 6
Idols: Eli, Kasumi, Riko
- 1 Dec 2021: Movie Day!
Idols: Kasumi, Riko
- 13 Feb 2023: Don’t Lose Focus When You Wrap!
Idols: Kasumi, Riko
- 30 Jun 2023: Off We Go!
Idols: Ai, Ayumu, Chika, Dia, Eli, Emma, Hanamaru, Hanayo, Honoka, Kanan, Kanata, Karin, Kasumi, Kotori, Lanzhu, Maki, Mari, Mia, Nico, Nozomi, Riko, Rina, Rin, Ruby, Setsuna, Shioriko, Shizuku, Umi, Yoshiko, You