Artist: enkyo yuuichirou

Artist, freelance illustrator. Previously employed by various video game companies as a 2D graphic designer.

Japanese name: 円居 雄一郎 (Enkyo Yuuichirou)
The other name: kuro
Old name: 渚のくろうさぎ (Nagisa no Kuro Usagi; often spelled as Nagisa Kurousagi)