Groups
- merapuremi 7
- merkmal 7
- messe sanoh 7
- michinoku lunch 7
- middle earth 7
- mig 7
- mikenekotei 7
- milf books 7
- milk pot 7
- milk rotary 7
- milk tea ni satou 4hai 7
- milk-size 7
- milky paint 7
- mimishiki 7
- minmin 7
- mintcube 7
- miracle heart 7
- mitsu-iro syrup 7
- mix 7
- mobile armor division 7
- mocchi 7
- mochimochi carnevale 7
- mochimochi factory 7
- mochinonnon. 7
- modokashiwc 7
- moe ultimate 7
- mogullaz 7
- mogura-dou 7
- mokkori factory 7
- mokushiroku 7
- molten club 7
- momiji oroshi 7
- momoneko doumei 7
- monmon club 7
- moo 7
- moonbabylon 7
- moonstone honey 7
- morphine 7
- mosoya 7
- mottocompany 7
- mount position 7
- moyashiken 7
- ms2 7
- mukyuu dynamic 7
- multi media studio l.o.e.r. 7
- mumyoukutsu 7
- munyuu taishi 7
- murasaki-dou honten 7
- murder koubou 7
- mutation 7