Takauji ASHIKAGA, who at first stood for the Bakufu to thwart an Emperor Godaigo's plan, gradually began to conceal his intention to overthrow the Shogunate, and after he consulted Sadayoshi KIRA, a grand person of the family, he went over to the side of the Imperial Court.
当初、幕府方として後醍醐天皇の企てを阻止する側に加わっていた足利尊氏は次第に倒幕の志を秘めるようになり、一門の重鎮　吉良貞義に相談の上、朝廷側への寝返りを決行。