giuniu
Artist. The virtual youtuber tag is giuniu (vtuber).
This tag is associated with two (or three) nicknames. Probably they are the same person.
* Name as a NSFW artist: ぎうにう (Giuniu)
** Site name: ぎうにう屋
** Blog: http://blog.livedoor.jp/g1un1u/
** Pixiv account: http://www.pixiv.net/member.php?id=265292
** NicoNico Douga account: http://www.nicovideo.jp/user/5071883
** NicoNico Seiga images: http://seiga.nicovideo.jp/user/illust/5071883?target=illust_all
** Twitter account: http://twitter.com/g1un1u
** Twitpic account: http://twitpic.com/photos/g1un1u
** The Interviews account: http://theinterviews.jp/g1un1u
* The other names: 茶 (Cha) or ひみつ (Himitsu)
** Site name: DEAR
** Home page: http://dear0410.himegimi.jp/
** Piapro account: http://piapro.jp/peachtea