URLs

• https://www.pixiv.net/users/742802
• https://www.pixiv.net/stacc/kusanagi_ryuuiti
• https://twitter.com/kusanagi_ryuuit
• https://twitter.com/intent/user?user_id=3265287608
• https://sketch.pixiv.net/@kusanagi_ryuuiti
• http://perupone.blog.fc2.com