IV (イヴ) (born February 16th, 1990; Japan) is a Japanese artist member of the 流行的 JRock band ViViD. He is the band's bassist and the composer of most of their songs.

IV's first wellknown band was キス&ネイト (Kisnate), formed in October 2007. Kisnate was around until February 2009, but IV left the band already in July 2008. The band released at least three singles during the time IV was their member.

After Kisnate, IV was a support member for 氷男 (Iceman), オーダーメイド (Ordermade)'s vocalist Haru's project, and he occasionally had lives with his and Ko-ki's session...

ViViD is a five member Japanese rock and visual-kei band, having formed in March of 2009, that was signed under PS COMPANY's indie division Indie-PSC. The band describes their own concept and 音乐 as "Melodic Mixture Rock", which combines heavy rock with pop and hard rapping.
On August 9th, 2010 it was announced that ViViD will become a major band, signing with the label EPIC Records, which is a sub-label of Sony 音乐 Entertainment. Information about their major debut release didn't come until October 28th, where their fifth single ""Yume" ~Mugen no Kanata~" was revealed.

ViViD was formed in...