The outline of the story is that according to Nyonin (a woman), a certain high-ranking priest was indulged so much in the Tale of Genji that he could not concentrate on Buddhist teachings, so Kuyo was performed at her request.
高僧が長年源氏物語に耽溺したため仏の教えに専心出来ないとする女人の依頼により供養するという内容。