Artist, illustrator, web novelist.
Nickname: Def (ディフ)
Pen-name: 黒井 威匠 (Kuroi Ishou)
Site names: "d-DESIGNing" or "Def-Blog"
https://www.pixiv.net/users/479447
https://www.pixiv.net/stacc/def0603s
https://twitter.com/def0603
https://twitter.com/intent/user?user_id=125077695
https://seiga.nicovideo.jp/user/illust/3685005
http://com.nicovideo.jp/community/co59280
http://www.nicovideo.jp/mylist/21711021
https://www.nicovideo.jp/user/3685005
https://nijie.info/members.php?id=84316
https://pawoo.net/@def0603
https://pawoo.net/web/accounts/4302
http://www.tinami.com/profile/71750
https://www.tinami.com/creator/profile/11573
https://def0603.tumblr.com
http://ddesigning.web.fc2.com
http://piapro.jp/def0603
http://www.stickam.jp/profile/defeat0603
http://www.youtube.com/channel/UCpiD77H2dpJPN6srQJfJhgQ
http://def0603.blogspot.jp
http://plus.google.com/103667636681148009867/posts
http://soundcloud.com/def0603
http://pixiv.cc/chronowarld
https://www.pixiv.net/users/4696637
https://www.pixiv.net/stacc/chronowarld
https://www.pixiv.net/stacc/def0603
https://twitter.com/def0603s
http://theinterviews.jp/def0603
http://p.twipple.jp/user/def0603
http://twitpic.com/photos/def0603
http://twitpic.com/photos/def0603s
