URLs

• https://www.pixiv.net/users/156358
• https://www.pixiv.net/stacc/rakugaki_m
• https://twitter.com/masateru_art
• https://twitter.com/masateru_ik
• https://twitter.com/intent/user?user_id=30261711
• https://twitter.com/intent/user?user_id=310000279
• https://www.deviantart.com/masateru
• https://masateru.fanbox.cc
• https://sketch.pixiv.net/@rakugaki_m
• https://www.tinami.com/creator/profile/15572
• http://www.geocities.jp/masateru_ik/
• http://img.blogs.yahoo.co.jp/ybi/1/f2/eb/masateru_ik/