Artist. Has two names.
Japanese name: 渡利 尤 (わたり ゆう, Watari Yuu; the artist uses this spelling: "Watari Yuh")
Name for fanart: 蓮鍵 (ハスキー, Hasukii; the artist uses this spelling: "Haskey")
The other names: わたり (Watari), 尤 (Yuu), ハス (Hasu) or 朱汰 (Shuta)
Circle name: *HazySky*
Site names: "rad.4 smiles" or 狗小屋
Old site name: "Serpentin ~色彩テープ~" or "Hazy warter"
https://www.pixiv.net/users/2912927
https://www.pixiv.net/stacc/r0ulay
https://twitter.com/haskey_
https://twitter.com/intent/user?user_id=365030724
https://seiga.nicovideo.jp/user/illust/1156849
http://com.nicovideo.jp/community/co1363116
http://www.nicovideo.jp/mylist/25571414
https://www.nicovideo.jp/user/1156849
https://haskey.fanbox.cc
https://sketch.pixiv.net/@r0ulay
https://ask.fm/haskey_
http://rad4.blog.fc2.com
http://livedoor.blogimg.jp/r0ulay/imgs/e/8/
http://blog.livedoor.jp/r0ulay/
http://mixi.jp/list_album.pl?id=19486416
http://mixi.jp/show_friend.pl?id=19486416
http://privatter.net/u/haskey_
http://www.stickam.jp/profile/watari98
http://photozou.jp/photo/top/925858
http://twitcasting.tv/r0ulay
http://www.twitcasting.tv/r0ulay
http://www.ustream.tv/channel/おえかきなう-渡利
http://pixiv.cc/haskey
https://www.pixiv.net/users/27341
https://www.pixiv.net/stacc/mota1220
http://twitpic.com/photos/r0ulay