Groups
- rakuen koubou 3
- rakuen no sora 3
- rakugakidou 3
- rakukisa 3
- rakutoa 3
- ranchiki 3
- rantanoid 3
- rapcat 3
- rapid fire 3
- rare diamond 3
- rasen dial 3
- rasinban 3
- rask 3
- raster kapsel 3
- ratio1 3
- rave 3
- raven 3
- ray-roh 3
- razchoco 3
- re colon red 3
- re-tale 3
- re.lay 3
- receipt 3
- red bean milk tea 3
- red dragon 3
- red snake come on 3
- red-rum 3
- redsparkling 3
- ref 3
- reggutomaho 3
- regnie 3
- reimeidou 3
- reincarnate 3
- reisei hormone 3
- rela factory 3
- rem 3
- remix 3
- renai doumei 3
- renglet 3
- rennyuu aquarium 3
- resident of iii 3
- ressei dan 3
- retro lab 3
- reverv. 3
- rh plus 3
- ricalanduse 3
- rico project 3
- riff-racket 3
- right ball party 3
- rikuriku 3