Groups
- usagi paradise 4
- ushitora-dou 4
- uso pyon 4
- utage 4
- utau kotori 4
- utgo 4
- utsutsutsutsu. 4
- utsutsuyume 4
- uzo-muzo 4
- uzukikan 4
- v muscle 4
- veludo aoi 4
- velvetscomicrew 4
- verite 4
- violet order 4
- violet venom 4
- vivi-sectr 4
- vivid thunder 4
- voice of flower 4
- void 4
- voyage kenkyuu club 4
- wagahai roman-shu 4
- wakuwaku boycott 4
- waltz 4
- wanko soft 4
- wanwan juice 4
- waokitusnezaru no kuni 4
- waowao world 4
- war belong 4
- warabilinu 4
- wareago 4
- waryuutei 4
- water valley 4
- we are coming 4
- wesker 4
- white heart 4
- wib 4
- wing kyanite 4
- winsuka. 4
- wiz 4
- wmd 4
- wolfonia 4
- woodwork nostalgia 4
- wotona no namae 4
- wreathbox 4
- wriggle souzeme tomonokai 4
- ws. 4
- xxxdelta 4
- y-nrg system 4
- yachu onsen 4