Groups
- nmtk 12
- no fate 12
- no strike 12
- noahs room 12
- nothing-plan 12
- nukiashi sashi 12
- nuko majin 12
- nukowata 12
- nyaa nyaa koushinjo 12
- odds and ends 12
- ogura tankenka 12
- ojin koukoku 12
- okkina tama 12
- omatsuri kibun 12
- omochi no mochi-ya 12
- omochiya 12
- one hit wonder 12
- ookami no kyuujitsu 12
- ookami shoujo dan 12
- operating room 12
- orange box 12
- orange chocolat 12
- orange piece 12
- orange typhoon 12
- osushi og 12
- p freak 12
- p-doll 12
- p.d crown 12
- pakupikubon 12
- parallel world 12
- parasite garden 12
- pasture soft 12
- peach garden 12
- peach soft 12
- peach-pit 12
- peaky 12
- pechika 12
- penteru kohboh 12
- pervert 12
- petit 12
- picopicosoft 12
- pink no jaguchi 12
- pipe de ooabare 12
- pk2 12
- planetarium 12
- plus10 12
- pm02 colon 00 12
- ponkanshou 12
- ponyori densetsu 12
- pop shot 12