https://www.cinra.net/interview/201809-takagimasakatsu

https://twitter.com/blueberry5959/statuses/719391179276562432

https://gigazine.net/news/20180928-die-from-giving-up-fight/

https://do-nothing.tumblr.com/post/178537371755

https://www.r45.jp/single-post/20180928-meigen

https://dekiru.net/article/17103/

http://www.itmedia.co.jp/mobile/articles/1809/28/news050.html

https://japanese.engadget.com/2018/09/28/twitter/

https://do-nothing.tumblr.com/post/178529377865

https://www.famitsu.com/news/201809/28164931.html