Serie includes 146 albums .
Odoriko Tettei Kousoku Kusuguri Jigoku
Offpako Quest Hitozuma Hen
Old Fashion 13
Otenba Hime → Juujun Hae Yome Hime
Oujo Rojou Shussan ~ Koukai Rinkan Bunben Kei ~
Oujo Rojou Shussan ~Koukai Rinkan Bunben Kei~
Pink Sisters
RE:set one
Rhythm
Rhythm - Extreme Mix Vol. 2
Rojou Renzoku Zecchou ~Chijoku no Kyousei Shouten Jigoku~