URLs

• https://www.pixiv.net/users/580027
• https://www.pixiv.net/stacc/venus_s
• https://twitter.com/osamu_sakata
• https://twitter.com/intent/user?user_id=19382969
• https://sakatashouten.booth.pm
• https://www.facebook.com/osamu.sakata2/
• https://ja.wikipedia.org/wiki/坂田理
• https://anidb.net/creator/1566
• https://www.animenewsnetwork.com/encyclopedia/people.php?id=7685
• https://w.atwiki.jp/anime_wiki/pages/1527.html
• https://w.atwiki.jp/sakuga/pages/1011.html
• https://myanimelist.net/people/69133
• https://odaibako.net/u/osamu_sakata