Theatre Episodes Featuring Mari and Karin
- 29 Jun 2020: Happy Birthday, Karin!
Idols: Karin, Mari
- 20 Jan 2022: Morning Routine
Idols: Eli, Karin, Mari
- 2 Jul 2022: Delivering Shiny!
Idols: Karin, Mari
- 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