According to one theory, this expression referred to the Adauchi cases that were widely known from the middle of the Edo period as the 'Three Major Adauchi Cases': 'Adauchi by the Soga brothers' (the Soga brothers performed Adauchi by taking advantage of the makigari (a form of hunting by surrounding the target from various directions) which took place in Susono City at the foot of Mount Fuji); 'Ako Roshi no Uchiiri' (since the seal of the Asano family of the Ako clan, in Harima Province, was a 'hawk's feather without a circle'); and 'Igagoe no Adauchi' (since Iga Province was known as an area for the production of eggplant).
これは一説には江戸時代の中頃から「三大仇討ち」として喧伝されてきた「曾我兄弟の仇討ち」（曾我兄弟は富士山の裾野市で巻狩りが行なわれた際にこれに乗じて仇討ちを行なった）、「赤穂浪士の討ち入り」（播磨国赤穂藩浅野家の家紋が「丸に違い鷹の羽」だったことから）、「伊賀越えの仇討ち」（伊賀国はなすびの産地として知られていたことから）のことを言ったものである。