https://m.chiebukuro.yahoo.co.jp/detail/q1030009730

https://kotobank.jp/word/%E5%85%90%E7%AB%A5%E3%83%9D%E3%83%AB%E3%83%8E-522140

https://www.pixiv.net/member_illust.php?mode=medium&;illust_id=32326900