URLs

• https://www.pixiv.net/users/1541805
• https://www.pixiv.net/stacc/sasaki_yukimasa
• https://twitter.com/yukimalu_0
• https://twitter.com/yukimaru422
• https://twitter.com/intent/user?user_id=219031655
• https://twitter.com/intent/user?user_id=2610495763
• https://seiga.nicovideo.jp/user/illust/17218300
• https://www.nicovideo.jp/user/17218300
• https://sketch.pixiv.net/@sasaki_yukimasa
• http://marumarutei.blog.fc2.com