Artst, mangaka.
Japanese name: 桜りゅうけん (Sakura Ryuuken or Sakura Ryuken)
Circle & site name: Luck GEAR
https://www.pixiv.net/users/6808
https://www.pixiv.net/stacc/luckgear
https://twitter.com/s_ryuken
https://twitter.com/intent/user?user_id=96997370
https://pawoo.net/@luckgear
https://pawoo.net/web/accounts/193343
https://luckgear.fanbox.cc
https://sketch.pixiv.net/@luckgear
http://doujinshi.mugimugi.org/browse/author/4987/Sakura-Ryuuken/
http://p.twipple.jp/user/s_ryuken
http://twitpic.com/photos/s_ryuken
