URLs

• https://dic.pixiv.net/a/石渡マコト
• https://twitter.com/MaK_Ishiwata
• https://twitter.com/intent/user?user_id=94849465
• https://www.artstation.com/user-6cf4fde187f4cedb
• https://dic.nicovideo.jp/id/5014819
• https://mak-ishiwata.tumblr.com