URLs

• https://www.pixiv.net/users/18296727
• https://www.pixiv.net/stacc/a4a4a
• https://twitter.com/A4_0000
• https://twitter.com/intent/user?user_id=842258414541582336
• https://seiga.nicovideo.jp/user/illust/46834602
• https://www.nicovideo.jp/user/46834602
• https://pawoo.net/@a4_000
• https://pawoo.net/web/accounts/543004
• https://sketch.pixiv.net/@a4a4a
• http://odaibako.net/u/A4_0000