Artist.
Japanese name: 心亜 (readins is given as ここあ, Kokoa)
Site name: 継接ぎだらけの人生
https://www.pixiv.net/users/647122
https://www.pixiv.net/stacc/ikaretemasugananika
https://sketch.pixiv.net/@ikaretemasugananika
http://notcorhye.blog.fc2.com
http://piapro.jp/akitane6
http://twpf.jp/neetxxcocoa
https://twitter.com/neetxxcocoa
http://theinterviews.jp/neetxxcocoa
http://twitpic.com/photos/neetxxcocoa
