When Yoriyuki became Kanrei and was engaged in national politics, Yoriari was entrusted with domain management as Shugodai (deputy provincial governor) and fought with Kono clan, which sided with the Sourthern Court (Japan), while striving to vassalize local lords and samurai.
頼之が管領に就任して幕政に関わると守護代として領国経営を任され、国人の被官化などに務め、南朝(日本)方の河野氏と戦う。