Artist seems to have blanked their original Pixiv profile and moved to a different one under the name わななべ (wananabe).
https://www.pixiv.net/users/135495
https://www.pixiv.net/users/8503288
https://www.pixiv.net/stacc/kawanabe
https://www.pixiv.net/stacc/navee
https://twitter.com/webtana
https://twitter.com/intent/user?user_id=758427446
https://web-tana.tumblr.com
http://veaaaaa.blog.fc2.com
