Groups
- red chuck 4
- red crow 4
- red farmer 4
- red hot heroines 4
- red sox 4
- redsquid 4
- reindeer 4
- rejust 4
- rekukichi-dou 4
- relic 4
- renbu exe 4
- rengeza 4
- renkodou 4
- reon 4
- rgb 4
- ride9 4
- rimi 4
- ringkilling 4
- ringo ame 4
- rnubo 4
- rock n dolless 4
- rodiura. 4
- rokugatsu no ubugoe 4
- rolling zonbies 4
- romantic apocalys 4
- romantic ren-ai mode 4
- root nanajuugo 4
- rosalia 4
- rosebud 4
- roshin kansokujo 4
- rouge et noir 4
- roujin to tanemomi 4
- royal garden 4
- rsag 4
- runrun soft 4
- ruri-iro special room 4
- ruruie 4
- ruruna and nimunimu 4
- russian roulette 4
- russiapan 4
- ryokurin 4
- ryoumusubi enmusubi 4
- ryu-saikan 4
- ryuuryokukakou. 4
- ryuushikei 4
- s jikousaten 4
- s.d.works 4
- s2h 4
- sabaku no hatchouborii 4
- sadakichi-tei 4