URLs

• https://www.pixiv.net/users/6108281
• https://www.pixiv.net/stacc/ktktro
• https://twitter.com/ktktro
• https://twitter.com/intent/user?user_id=818365205084155906
• https://seiga.nicovideo.jp/user/illust/41190441
• https://www.nicovideo.jp/user/41190441
• https://odaibako.net/u/ktktro