URLs

• https://www.pixiv.net/users/638397
• https://www.pixiv.net/stacc/piebald
• https://x.com/3rd_7th
• https://x.com/i/user/46371855
• https://sketch.pixiv.net/@piebald
• https://marshmallow-qa.com/3rd_7th
• http://twpf.jp/3rd_7th
• http://birdcage.x0.com/ppp/
• http://p.twipple.jp/user/3rd_7th
• http://twitpic.com/photos/3rd_7th