Groups
- forest soft 2
- foretnoire 2
- forgetmenot 2
- frankfurt gozen 2
- free style picnic 2
- freeplay 2
- from control 2
- frost 2
- frosted chocolate 2
- frozen 2
- fsp 2
- fudenabe 2
- fufubako 2
- fugace 2
- fujitsubo chain 2
- fujunbutsu 2
- fukenkou club 2
- fukujin senrai 2
- fukurousagi 2
- fukuyoka towel 2
- full bottle 2
- full burn 2
- fullauto firing 2
- fullmoff 2
- funi funi soft 2
- funmatsu 2
- funny crew 2
- funya milk 2
- funyaten 2
- furachi 2
- furaibou studio 2
- furonezumi 2
- furueru mountain 2
- fusa syobou 2
- futabasshu 2
- futago beya 2
- futagoyomi 2
- futeikei zenzai 2
- futomayu 2
- futon mushi 2
- fuuraibou 2
- fuuryuu kitan 2
- fuwafuwa macaron 2
- fuwafuwa no usagiya san 2
- fuzoku juko 2
- fzy 2
- g stomach 2
- g-da 2
- g-sprite 2
- g-work at mi 2