https://www.pixiv.net/users/3083447
https://www.pixiv.net/stacc/masato_k
https://twitter.com/shashaneko123
https://twitter.com/intent/user?user_id=342066475
https://pawoo.net/@masato_k
https://pawoo.net/web/accounts/429383
https://sketch.pixiv.net/@masato_k
https://anilist.co/staff/165203/Masato-Katsumata
https://w.atwiki.jp/anime_wiki/pages/27424.html
https://neoti-1.tumblr.com
The following tags are aliased to this tag: katsumata_masato and shishamo_(masato_k) (learn more).
