https://seiga.nicovideo.jp/user/illust/48160664
https://www.nicovideo.jp/user/48160664
http://starcrescent.sakura.ne.jp
https://www.pixiv.net/users/16145567
https://www.pixiv.net/users/21254546
https://www.pixiv.net/stacc/ichiitetsuro
https://www.pixiv.net/stacc/user_otv9586
https://twitter.com/prayforthec
https://twitter.com/rakugaki426
