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"