URLs

• https://www.pixiv.net/users/49883
• https://www.pixiv.net/stacc/kouooba
• https://twitter.com/KouOoba
• https://twitter.com/intent/user?user_id=52692431
• https://sketch.pixiv.net/@kouooba
• http://www.eonet.ne.jp/~kouooba/
• http://www.pixa.cc/profiles/show/41473?mode=detail