Theatre Episodes Featuring Umi and Emma
- 3 Oct 2020: Mountain Climbing Day! The Long Awaited Companion Joins!!
Idols: Emma, Umi
- 6 Jan 2022: New Year's Never Ends!
Idols: Emma, Umi
- 18 Feb 2023: Winter Mountain Climbing!
Idols: Emma, Umi
- 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