Theatre Episodes About "Rina's Inventions"
- 27 Jun 2020: I Want to Have This and That
Idols: Honoka, Rina
- 25 Sep 2021: Joint Event Starts!
Idols: Kasumi, Rina, Shizuku
- 9 Oct 2021: QU4RTZ Is Full of Energy!
Idols: Emma, Kanata, Kasumi, Rina
- 2 Feb 2022: An Invention for You!
Idols: Nico, Rina
- 19 May 2022: Match, Start!
Idols: Rina, Setsuna, Shioriko
- 21 May 2022: Road to Success!
Idols: Karin, Mia, Rina
- 18 Jun 2022: Secret Invitation Letter
Idols: Rina, Shizuku
- 27 Aug 2022: Nijigaku Rush!
Idols: Rina, You