Artist.
Nickname: まるサン (Maru-Sun)
The other name: ブラック●サン
Old name: maru (まる)
Circle names: まるしき (Marushiki) or おとなのまるしき (Otona no Marushiki)
Site name: まるしきブログ
https://www.pixiv.net/users/3863581
https://www.pixiv.net/users/14285279
https://www.pixiv.net/stacc/black___sun
https://www.pixiv.net/stacc/maru_rx
https://twitter.com/maruRX
https://twitter.com/intent/user?user_id=86232792
https://marushiki.booth.pm
https://seiga.nicovideo.jp/manga/list?user_id=1002930
https://seiga.nicovideo.jp/user/illust/1002930
http://com.nicovideo.jp/community/co3485048
https://www.nicovideo.jp/user/1002930
https://nijie.info/members.php?id=541914
https://pawoo.net/@maru_rx
https://pawoo.net/web/accounts/189523
https://marushiki.fanbox.cc
https://sketch.pixiv.net/@maru_rx
http://portal.circle.ms/Circle/Index/10083280
http://webcatalog.circle.ms/Perma/Circle/10083280
http://www.dlsite.com/home/circle/profile/=/maker_id/RG35657.html
http://www.dlsite.com/maniax/circle/profile/=/maker_id/RG35657.html
http://b.dlsite.net/RG35657/
http://www.melonbooks.com/index.php?main_page=maker_info&makers_id=MK0000016540
https://www.pixiv.net/users/482084
https://www.pixiv.net/stacc/dtron
https://twitter.com/dtron135
http://p.twipple.jp/user/marurx
http://twitpic.com/photos/maruRX