エリザベート CV. Okubo Rumi - AKOGARE TION
03:21
Elizabeth (CV: Okubo Rumi) - AKOGARE TION
03:19
Hisako Kanemoto, Manaka Iwami, Rumi Okubo - GAMERS! (Геймеры! op)
03:22
Okubo Rumi - Happy Ice Cream! (Hinako mix)
03:50
Okubo Rumi - Acchi Kocchi ED - Te wo Gyu Shite ne - Tsuneko no Waltz
01:46
KATE, Okubo Rumi - shalala la
01:46
KATE, Okubo Rumi - organism harmonics
03:00
Aguri (CV. Rumi Okubo) - GAMERS! Aguri Ver.
03:22
Aguri (CV. Rumi Okubo) - 04 Gekiteki!
03:58
Okubo Rumi [Aguri] - GAMERS!
03:22
Momosaki Hina (CV: Ōkubo Rumi) - 03. Haru no Ogawa -march re arrange-
03:27
Momosaki Hina (CV: Ōkubo Rumi) - 02. Harumachi Ibuki wa Kimi Koishi
04:00
Momosaki Hina (CV. Okubo Rumi) - Haru Machi Ibuki wa Kimi Koishi
04:00
Momosaki Hina (CV. Okubo Rumi) - Haru no Ogawa -March Re Arrange-
03:27
KATE, Okubo Rumi - girl's side laboratory?
03:17
Myojin Kirara (明神きらら) CV.Rumi Okubo (大久保瑠美) - Poker face ポーカーフェイス (Yucha P ゆちゃP feat.Rumi Okubo (大久保瑠美)
03:20
Aguri (Rumi Okubo) - GAMERS! Rumi Okubo Ver.
03:22
MikitoP feat. Myojin Kirara (CV. Okubo Rumi) - Kunoichi Demo Koi ga Shitai
04:10
YuchaP feat. Myojin Kirara (CV. Okubo Rumi) - Poker Face
03:20
The Dawn (CV: Okubo Rumi & Nakajima Saki) - Dies irae Switch Countdown Voice 10
01:34
Rumi Okubo - Atarashii Sekai
03:44
Emilia (CV: Rumi Okubo), Claire (CV: M A O) - Kyōshin no arisueida 共振のアリセイダ
05:01
Emilia (CV: Rumi Okubo), Claire (CV: M A O) - 共振のアリセイダ (Instrumental)
05:01
Emilia (CV: Rumi Okubo), Claire (CV: M A O) - Kyōshin no arisueida(Instrumental) 共振のアリセイダ (Instrumental)
05:01
Emilia (CV: Rumi Okubo), Claire (CV: M A O) - 共振のアリセイダ
05:01
04:34
Hisako Kanemoto & Manaka Iwami & Rumi Okubo - GAMERS! (Instrumental)
03:21
Hisako Kanemoto & Manaka Iwami & Rumi Okubo - GAMERS! (HUGKISS Boot)
03:46
Rumi Okubo - Neraiuchi!
04:13
Rumi Okubo - Te wo Gyu Shite ne
04:16
Rumi Okubo - Happy Ice Cream! (HINAKO Mix)
03:50
Rumi Okubo & Mayu Yoshioka - EYES ON ME [Hundred ED 1]
04:16
Rumi Okubo - Kore ha Yuyushiki Jitai Desu! Hontou ha Hontou ha... Nano feat. SCL Project
03:13
Rumi Okubo - Te wo Gyu Shite ne (Instrumental)
04:16
Aguri (CV. Rumi Okubo) - GAMERS! 亜玖璃 Ver.
03:22
Aguri (CV. Rumi Okubo) - GAMERS! (Aguri Version)
03:22
[Yuru Yuri] Chinatsu Yoshikawa(CV:Rumi Okubo) - 5.China no Ekaki Uta チーナのえかきうた
04:36
Rumi Okubo & Mayu Yoshioka - EYES ON ME [Instrumental] [Hundred ED 1]
04:16
Yuzuko Nonohara (CV: Rumi Okubo) - Say no Tsu! -TV Edit Nonohara Yuzuko Ver.-
01:37
Nao Toyama, Yumi Uchiyama, Rumi Okubo - Juu Game Moi Non Plus
03:35