URLs

• https://www.pixiv.net/users/1916571
• https://www.pixiv.net/stacc/natsunouma
• https://twitter.com/natsunouma
• https://twitter.com/intent/user?user_id=108032271
• https://sketch.pixiv.net/@natsunouma
• http://blog.livedoor.jp/room354/
• http://twitpic.com/photos/natsunouma