URLs

• https://www.pixiv.net/users/475173
• https://www.pixiv.net/stacc/kotsuka
• https://twitter.com/kotsuka1990
• https://twitter.com/intent/user?user_id=209603763
• https://kotsuka.fanbox.cc
• https://www.pixiv.net/fanbox/creator/475173
• https://sketch.pixiv.net/@kotsuka
• http://shounensha.blog.fc2.com
• http://shounensha.web.fc2.com
• http://c10008405.circle.ms/oc/CircleProfile.aspx
• http://p.twipple.jp/user/kotsuka1990
• http://twitpic.com/photos/kotsuka1990