Akinari had been studying alone about Keichu until then, and he became a disciple of Miki KATO (his family name is also known as FUJIWARA or KAWAZU, and first name Umaki), a classical Japanese scholar, before or after writing "Ugetsu Monogatari."
それまでも独学で契沖のことを学んでいた秋成は、やはり『雨月物語』執筆の前後に、国学者加藤美樹（姓は藤原、河津、名は宇万伎とも）に入門している。