When the Retired Emperor of the Northern Court was deprived of the Shohei no itto by the Southern Court, Doyo supported the Emperor Gokogon, reestablishing the Northern Court and strengthening the power of shogunate.
正平一統は北朝上皇が南朝に奪われて破綻すると後光厳天皇を擁立しての北朝再建、将軍権力の強化に尽力する。