Artist.
Japanese name: 幼魂 (Artist gives reading as rorikon)
https://www.pixiv.net/users/415754
https://www.pixiv.net/stacc/youkon
https://twitter.com/llcn_0105
https://twitter.com/intent/user?user_id=386955798
https://sketch.pixiv.net/@youkon
http://pixiv.cc/rorikon
https://twitter.com/rorikon_0105
http://twitpic.com/photos/rorikon_0105