However, Shimonokuni family still did not give up the attempt to continue controlling where was once its sphere of influence, and tried to display the controlling range from the northern Mutsu Province to Ezo, by proclaiming itself Tokai Shogun (general of Tokai) within and outside the territory (About this, there are some contradictions).
しかし、下国家はなおもかつての勢力圏の支配の意欲を捨てておらず、東海将軍を称して内外に出羽、陸奥北部から蝦夷にかけての支配圏を誇示しようとした（これには否定的見解も出されている。）。