URLs

• https://www.pixiv.net/users/6509937
• https://www.pixiv.net/stacc/qumata
• https://x.com/Qumata727
• https://x.com/i/user/789447605541478400
• https://pawoo.net/@qumatanX
• https://sketch.pixiv.net/@qumata
• https://anidb.net/creator/70440
• https://anilist.co/staff/152045/Yuuki-Matsuguma
• https://www.animenewsnetwork.com/encyclopedia/people.php?id=268443
• https://w.atwiki.jp/sakuga/pages/2159.html
• https://myanimelist.net/people/64355