Artist, illustrator, railbird.
Pen-name: masamsa
https://www.pixiv.net/users/4763876
https://www.pixiv.net/stacc/masamasa1983
https://twitter.com/masamasa_il
https://twitter.com/intent/user?user_id=1457693513014181889
https://masamasa1983.fanbox.cc
https://www.pixiv.net/fanbox/creator/4763876
https://sketch.pixiv.net/@masa19830709
https://www.tinami.com/creator/profile/48455
https://www.pixiv.net/stacc/masa19830709
https://twitter.com/sutekima
https://twitter.com/intent/user?user_id=2424718880
