it is said that after Yoshiyuki's death, Kyushu underwent an agitated period of gekokujo (the revolt of vassals against their lords), then entered the Sengoku Period (Period of Warring States) (Japan), and the posthumous territories of the Kikuchi clan was divisively owned by the so called 'three chief retainers of Kikuchi,' the Akaboshi clan, the Jo clan, the Kumabe clan, etc.
能運の死後肥後国では下克上が進み戦国時代(日本)に突入したとされるが、菊池氏の遺領は菊池三家老と言われた赤星氏・城氏・隈部氏等が領するところとなった。