Artist name: Mars、マルス
Circle name: O-Mars
Homepage: http://o-mars.net/
Pixiv profile: http://www.pixiv.net/member.php?id=491985
https://twitter.com/mars8546
https://twitter.com/intent/user?user_id=60499000
https://www.tinami.com/creator/profile/6575
https://www.pixiv.net/users/491985
https://www.pixiv.net/stacc/mars8546
https://sketch.pixiv.net/@mars8546
http://twitpic.com/photos/mars8546
http://yfrog.com/user/mars8546/photos