Artist.
Japanese name: ちくかぷ (Chikukapu, the artist uses this spelling: "Tikukapu")
The other names: ぼり (Bori) and various joke names
Old site name: ちくかぷぅ
https://www.pixiv.net/users/219580
https://www.pixiv.net/stacc/tikukapu
https://twitter.com/Tikukapu
https://twitter.com/intent/user?user_id=122694314
https://sketch.pixiv.net/@tikukapu
https://privatter.net/u/ranntanntann
http://www.geocities.jp/tikukapu/
https://twitter.com/ranntanntann
http://tikukapu.blog.fc2.com
http://twitpic.com/photos/ranntanntann