Artist. Formerly tagged as yuika_(yurika712) or yurichi.
Japanese name: 竹乃 ここ (Takeno Coco or Takeno Koko)
Old name: 結華 (reading is given as Yuika)
Not sure this was her second account:
https://www.pixiv.net/users/1147941
https://www.pixiv.net/stacc/yurika712
https://twitter.com/cocotakeno
https://twitter.com/tknk00
https://twitter.com/yuika712
https://twitter.com/intent/user?user_id=144171888
https://twitter.com/intent/user?user_id=3064797859
https://twitter.com/intent/user?user_id=3068031054
https://sketch.pixiv.net/@yurika712
https://www.pixiv.net/users/13615980
https://www.pixiv.net/stacc/coco712
http://theinterviews.jp/yuika712
http://twitpic.com/photos/yuika712
