Groups
- mayorice suishou iinkai 21
- metagraft 21
- metamorphose 21
- milk pai 21
- milk protein 21
- miracle syrup 21
- mirin 21
- mitarou teishoku 21
- mitegura 21
- mlkx 21
- momiji coffee 21
- naginata kikaku 21
- nagko 21
- nekorobi 21
- nekoshaku 21
- nirvana soft 21
- nyankopi 21
- o.s 21
- o.s 21
- odoshiro canvas 21
- oktm 21
- onemu hormone 21
- oregun 21
- osomatsusama 21
- pajamas ex 21
- pantsu kakumei. 21
- petica 21
- pine 21
- pink-impulse 21
- pleats time 21
- pornostar 21
- princess heart 21
- rakdo 21
- ranshi to kimi to. 21
- rat 21
- ressentiment 21
- retasuya 21
- robazoku 21
- rokujiya 21
- romtaku 21
- rose tiara 21
- rouge 21
- rukonosu 21
- runners high 21
- ryokucha combo 21
- ryousangata ponyta 21
- ryuu no kinyoubi 21
- ryuusei potechi 21
- sadakichidou 21
- saikoro de kimerusouchi 21