Ohkubo Rumi CDs (singles)
Rumi appears (sings/talks) in the following CD singles.
| 2011.07.20 | My Pace de Ikimashou (PCCG-70120) | Song |
| 2011.07.20 | Yuri Yurararara Yuru Yuri Daijiken (PCCG-01197) | Song |
| 2011.09.07 | Marugoto! (PCCG-70124) | Song |
| 2012.01.25 | Loop [Yayuyu] (FVCG-1189) | Song |
| 2012.04.18 | Te wo Gyu Shitene (PCCG-70135) | Song |
| 2012.06.06 | Sengku Collection Vol.1 (UMCA-50017) | Song |
| 2012.07.04 | 100% Chu-Gakusei (PCCG-70138) | Song |
| 2012.07.04 | Yes! Yuyuyu Yuru Yuri (PCCG-01280) | Song |
| 2012.07.18 | Yuru Yuri!! Music 02 (PCCG-70142) | Song |
| 2012.09.19 | Oda Nobuna no Yabou Utahime 04 (PCCG-70154) | Song |
| 2014.08.20 | Pitty Patty Survibird (LACM-14266) | Song |
| 2014.08.20 | Ready Go!! (VTZL-86) | Song |
| 2014.10.01 | Sabagebu! Character Song 3 Kasugano Urara (LACM-14283) | Song/Talk |
| 2014.10.22 | Sabagebu! Character Song 5 Goutokuji Kayo (LACM-14285) | Song |
| 2016.05.25 | Eyes on Me (EYCA-10947) | Song |
| 2017.02.08 | Kirameki no Hi (GNCA-0443) | Song |
| 2017.08.23 | Gamers (GNCA-0499) | Song |