URLs

• https://www.pixiv.net/users/1092613
• https://www.pixiv.net/stacc/butakata
• https://twitter.com/butakata
• https://twitter.com/k_hayato193
• https://twitter.com/intent/user?user_id=131386663
• https://twitter.com/intent/user?user_id=3311450454
• https://seiga.nicovideo.jp/user/illust/2287873
• https://www.nicovideo.jp/user/2287873
• https://sketch.pixiv.net/@butakata
• http://www.amazon.co.jp/s/search-alias=books-jp&field-author=国府田+ハヤト
• http://c10015957.circle.ms/oc/CircleProfile.aspx
• http://portal.circle.ms/Circle/Index/10015957
• http://p.twipple.jp/user/butakata
• http://p.twipple.jp/user/k_hayato193
• http://twitpic.com/photos/butakata
• http://twitpic.com/photos/k_hayato193