Theatre Episodes Featuring Riko and Nico
- 26 Jul 2020: Kasumin’s Perfect Plan : Day 4
Idols: Chika, Kasumi, Maki, Nico, Riko
- 19 Nov 2020: Aim for Mastering the Nico
Idols: Nico, Riko
- 15 May 2021: Why I'm Number One
Idols: Nico, Riko
- 19 Sep 2021: Happy Birthday, Riko-chan!
Idols: Hanayo, Nico, Riko
- 8 Jun 2023: Leave It to Nico!
Idols: Nico, 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