Artist.
Japanese name: 丸 たけお (Maru Takeo)
Old name: 佐奈丸 (Sanamaru)
Circle names: ロボット忍者 (Robot Ninja) or 丸一 (Maruichi)
Site name: 佐奈丸念心堂
Old site name: ロボット忍者
https://www.pixiv.net/users/3009013
https://www.pixiv.net/stacc/robotninja75
https://twitter.com/marutakeo
https://twitter.com/intent/user?user_id=4771726274
https://seiga.nicovideo.jp/user/illust/7417578
https://www.nicovideo.jp/user/7417578
https://www.tinami.com/creator/profile/14477
http://robotninja.blog.fc2.com
http://portal.circle.ms/Circle/Index/10027540
