Groups
- mayu to mato 1
- mayu tomato 3
- mayugesaien 6
- mayugeya 30
- mayukitei 7
- mayumayu 1
- mayutokuru 1
- mayutsuba 1
- mayuziri 1
- mazarashi 6
- maze 18
- maze rerijio 5
- mazemono 1
- mazoririsu 1
- mazsoou 1
- mazui curry-ya 9
- mazuneru 2
- mb38 2
- mbl 24
- mbs 5
- mbs truth 50
- mc 256
- mc hanbaiten 19
- mccc 1
- mcnail koubou 42
- mcp 1
- mdg oukoku 7
- mdo 9
- me 1
- me no sato 24
- mea ai momona 1
- mead 4
- mean machine 133
- measure 1
- mebae anime 9
- mebae kyoudou 4
- mebi-ken 3
- mebio software 1
- mebius no wa 78
- mecca 3
- mecchori 17
- mech maze 1
- mechanical code 46
- mechanical pencil 16
- mecharis 11
- mechiru kids 1
- meco 3
- mecoro 10
- medaka inc 4
- medama keikoku 10