After the fall of Kamakura bakufu (Japanese feudal government headed by s shogun) and the Kenmu Restoration was done, he accepted and followed but he collided with the court's side Chiba clan and Shimofusa Soma clan in support of Takauji ASHIKAGA when he came into power.
鎌倉幕府の滅亡後、建武の新政が成立するとそれに従ったが、のちに足利尊氏が台頭するとそれに味方し、宮方の千葉氏、下総相馬氏と対立した。