The shogunate, no longer able to avoid acknowledging Morimi's overlordship of these lands, officially granted him the title of shugo over Suo and Nagato Provinces in 1405, and when they added the provinces of Buzen and Chikuzen to his dominion as shugo, he finally swore allegiance to the Shogun again.
幕府もこれを認めざるえなくなり応永12年（1405年）頃に盛見に周防・長門の守護職を与え、更に豊前・筑前の守護まで加えてようやく帰順させた。