Groups
- noumusai 13
- numathno. 13
- nyaa. to hidamari 13
- nymphy fine fresh 13
- oishii oshiri cafe 13
- okojo no machi 13
- oreichigo 13
- osakana tabeyo 13
- oshinobu no yakata 13
- otoko no roman 13
- ourakuza 13
- p-land 13
- pana land 13
- panda no kanzume 13
- pantie party project 13
- panya no enzo 13
- paradise d products 13
- pazzo s.p. 13
- pekora 13
- personal color 13
- phase 13
- piccolo studio 13
- picotama. 13
- pigeon blood 13
- pinacoparkh 13
- piyokoya 13
- planet nine 13
- platina blonde 13
- ponkotsu damashii 13
- ponkotsudou 13
- princess crown 13
- psy-walken 13
- pure light 13
- purukogi beach 13
- q-bit 13
- qg studio 13
- ra-raradan 13
- raijinoh 13
- rainwaterserver 13
- rakka sokudo 2.5 13
- ranmabooks 13
- rasa house 13
- rei art 13
- rengaworks 13
- rensei 13
- restart 13
- rh 13
- rocket nenryou 21 13
- rockydou 13
- rodeo 13