Groups
- retro 16
- retro cross 17
- retro lab 3
- retro maniax 2
- retro star 34
- retrobot 5
- retroboy 1
- retromonica 2
- retronym 2
- retrospect 1
- rettou bishounen 16
- rev3 114
- reverse 6
- reverse noise 139
- reversible panda 1
- reverv. 3
- revoeme 2
- revorious 10
- rezel craft 2
- rfd comics 6
- rg star 1
- rgb 4
- rgbabes 1
- rh 13
- rh minus 42
- rh plus 3
- rh1 1
- rhea rhea no puupa 1
- rhein no mamori shoukai 12
- rhetoric 25
- rhf migite no tomo sha 55
- rhythm five 1
- rhythm hitoya-r 12
- ri no ichiya 1
- ribaibal 1
- ribbon enikki plus 2
- ribbon magic 1
- ribbon super kikaku 18
- ribbonclassic 1
- ribi dou 102
- ribodi 1
- ribons nights 186
- riboshika unit 10
- ribyobu 22
- ricalanduse 3
- rice 2
- rice ball 2
- ricecandy 39
- ricering 1
- ricky-tick 8