The Kutsuki were a branch of the Sasaki family hailing from Omi Province. They served as the stewards of the Kutsuki manor in that province in the Kamakura period, and the house continued through the Warring States period and into the Edo period, when some of their members became bannermen (direct vassals of the shogun) or daimyo (provincial lords). "The archives of Kutsuki family" consist of historical documents passed down in the family through the years. The Cabinet Records Bureau purchased them from the Kutsuki in 1888. Containing more than 1,060 documents, the archives were designated an important cultural property in the first year of Heisei( 1989).
Dated 11 September in the 2nd year of Rekiou(1339), this "wayojo" (letter of compromise) was written on the occasion of settlement of a fief dispute between Ama Shin'a, the daughter of Sasaki Yukitsuna, and Sasaki (Kutsuki) Yoshinobu. Such letters set forth the particulars of the dispute and terms of compromise, and were concluded between the concerned parties. The text affords a glimpse of the furious argument between the two, stating that the procedure for filing of a petition by the complainant and a rebuttal by the defendant had been performed three times.