URLs

• https://www.pixiv.net/users/2781411
• https://twitter.com/frostcolumns
• https://twitter.com/intent/user?user_id=2923483069
• https://seiga.nicovideo.jp/user/illust/3530866
• https://www.nicovideo.jp/user/3530866
• https://www.pixiv.net/stacc/quassfjk
• https://sketch.pixiv.net/@quassfjk