Groups
- matsumo no mori 2
- matsumoto drill kenkyuujo 88
- matsumoto family 1
- matsumotoke 2
- matsunoan 8
- matsuoka kouko 1
- matsuri furi 3
- matsuri gensou 61
- matsuri juro 6
- matsuri kikaku 35
- matsuri-no-ato 1
- matsurija 84
- matsurika 11
- matsuro 1
- matsutake club 1
- matsutakehime 1
- matsutakeya honpo 4
- matsuya 3
- matsuyama seiji 46
- matsuzou honpo 3
- mattakeume 1
- mattan hieshou 16
- mattari gozen 3
- mattari honpo 1
- mattari house 44
- mattari nohohon 1
- mattariya 1
- mattete hototogisu 3
- mattsuaya 3
- matyaya 1
- mauboumen 25
- maumau shoujotai 7
- mauntain 1
- mauve 9
- maverick-vava 11
- mawari michi 5
- mawaru gomi no hi 2
- mawaru tsukito usagi 3
- max and cool 25
- maxal 10
- maxi 20
- maxi age 15
- maxi queen 4
- maximum wind 9
- maxiy 4
- maxzheart 7
- may 5
- may club 1
- may no tenshi 34
- may-be soft 76