He was influenced by Emperor Godaigo's Neo-confucianism (Sung-period neo-Cunfucianism), and participated in the conspiracy to attack the Kamakura bakufu (Japanese feudal government headed by a shougun).
後醍醐の朱子学（宋学）志向に影響を受け、鎌倉幕府討幕のための謀議に加わる。