Theatre Episodes Featuring Karin and Dia
- 28 Sep 2020: Dear You - Part 7
Idols: Dia, Karin, Umi
- 26 Feb 2021: Secret Outfit Support!
Idols: Dia, Karin
- 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