Artist.
Japanese name: ใใใใ (Kasukazu)
Circle & site name: ใตใงใใ (Fudeire)
https://www.pixiv.net/users/251906
https://www.pixiv.net/stacc/kasu4_kazu4
https://twitter.com/kasu_kazu
https://twitter.com/intent/user?user_id=81329661
https://nijie.info/members.php?id=4036
https://pawoo.net/@kasu4_kazu4
https://pawoo.net/web/accounts/182132
https://qz02kirt.fanbox.cc
https://sketch.pixiv.net/@kasu4_kazu4
https://kasukazu.tumblr.com
http://hudeireokiba.web.fc2.com
http://kasukazu.blog.fc2.com
http://mixi.jp/list_album.pl?id=13216953
http://mixi.jp/show_friend.pl?id=13216953
http://privatter.net/u/kasu_kazu
http://www.stickam.jp/profile/kasu_kazu
http://c10019959.circle.ms/oc/CircleProfile.aspx
http://c10053693.circle.ms/oc/CircleProfile.aspx
http://www.doujinshi.org/browse/author/53387/
http://theinterviews.jp/kasu_kazu
http://p.twipple.jp/user/kasu_kazu
http://twitpic.com/photos/kasu_kazu
