URLs

• https://www.pixiv.net/users/597149
• https://www.pixiv.net/stacc/10010204
• https://twitter.com/r_takamura
• https://twitter.com/intent/user?user_id=230635230
• https://sketch.pixiv.net/@10010204
• https://skeb.jp/@r_takamura
• http://mugenkairou.sakura.ne.jp
• http://page.freett.com/ryo_mugen/index.htm
• http://twitpic.com/photos/r_takamura