https://www.pixiv.net/users/1114872
https://www.pixiv.net/stacc/violetcat
https://twitter.com/channu00
https://twitter.com/channudarc00
https://twitter.com/intent/user?user_id=471223126
https://twitter.com/intent/user?user_id=1397136347089932288
https://sketch.pixiv.net/@violetcat
http://blog.livedoor.jp/violetcat03/
