Artist.
Nickname: Zetubou (ゼツボウ, Zetsubou)
The other names: 暗黒騎士, スーパーエロス or マスターエロス
Circle names: Zetubou or Zetubou Press
Site names: スペシャルAマート or Zetubou channel
https://www.pixiv.net/users/1196200
https://www.pixiv.net/stacc/nirvaana
https://zetubou.booth.pm
https://seiga.nicovideo.jp/manga/list?user_id=469888
https://seiga.nicovideo.jp/user/illust/469888
https://www.nicovideo.jp/user/469888
https://nijie.info/members.php?id=3745
https://akahane.fanbox.cc
https://sketch.pixiv.net/@nirvaana
https://ask.fm/z_schwarzschild
http://zetubouchan.blog.fc2.com
http://www.dlsite.com/ecchi-eng/circle/profile/=/maker_id/RG15735.html
http://www.dlsite.com/maniax/circle/profile/=/maker_id/RG15735.html
http://b.dlsite.net/RG15735/
http://www.melonbooks.com/index.php?main_page=maker_info&makers_id=MK0000006683
https://twitter.com/z_schwarzschild
http://aafaafaaf.blog.fc2.com
http://p.twipple.jp/user/z_schwarzschild
http://twitpic.com/photos/z_schwarzschild
