URLs

• https://www.pixiv.net/users/150588
• https://www.pixiv.net/stacc/552
• https://twitter.com/takahi_RO
• https://twitter.com/intent/user?user_id=63211685
• https://sketch.pixiv.net/@552
• https://skeb.jp/@takahi_RO
• https://www.mangaupdates.com/author/s2gycoo
• https://www.animenewsnetwork.com/encyclopedia/people.php?id=28817
• http://www16.plala.or.jp/the552/
• http://www16.plala.or.jp/the552/img/