Kakunyo instructed his son Zonkaku to administer to Ryōgen religious training and Hongan-ji textual documents. Zonkaku and Ryōgen became good friends during this period, but by 1324 there was tension between Zonkaku and Kakunyo. Kakunyo disinherited his son and disassociated himself with Ryōgen due to differences in understanding Hōnen and Shinran's teachings. So when Kosho-ji was established in 1324, it was not done so under the blessing of Hongan-ji. Zonkaku was a priest along with Ryōgen in the formative years of the temple.