Taking advantage of the trust placed in him by eighth Shogun Yoshimasa ASHIKAGA's, shogun family steward Sadachika ISE filled his own pockets and plunged the bakufu into chaos by intervening the internal troubles of the Shiba clan among Kanrei families (families in the position of the shogunal deputy) and by mediating between Yoshitoshi SHIBA and Yoshikado SHIBA.
将軍家々宰の伊勢貞親は8代将軍足利義政の信任を良いことに、管領家の一つ斯波氏のお家騒動に介入し斯波義敏と斯波義廉の間をとりなして私腹を肥やし、幕政を混乱に陥れた。