After the succession, Shigemori most likely fell ill, and he therefore failed to attend the Goshohajime (ceremony to learn how to read under the guidance of professors) held at the Togu (Crown Prince's Quarters) in December since, as he put it, he 'has been ill' and 'has been feeling uncomfortable,' and also, he let someone else assume the shokei (master of ceremony) post at the Daijoe (commemoration of the five major Mahayana Buddhist sutras).
後継者となった重盛だが健康を害したらしく、「日来所労」「昨今不快」により12月の東宮の御書始を欠席し、大乗会の上卿も交替する。