Oraimono by this period of history were mainly written by the educated classes, such as nobles and Buddhist priests, and therefore the oraimono before the Edo period are collectively called 'Koorai' (literally, old oraimono).
この時代までの往来物は公家や僧侶などの知識人によって書かれる事が多く、こうした江戸時代以前の作品をまとめて「古往来（こおうらい）」と呼ぶ。