From The Great Successor: The Divinely Perfect Destiny of Brilliant Comrade Kim Jong Un, by Anna Fifield (PublicAffairs, 2019), Kindle pp. 87-88:
Kim Jong Il had declared a three-year mourning period after the death of his father, during which time he consolidated his grip on the regime and tried to hang on through the famine.
But the Great Successor didn’t have any downtime. The man now known as the “Beloved and Respected” Comrade Kim Jong Un got busy “turning sorrow into strength,” as newsreader Ri put it. From that moment on, he devoted all his time and energy to staying in power. For that, he needed to establish his own power base, one that owed its loyalty directly to him, not to his father.
It was easy to make fun of the new young leader, and he would soon become the butt of many a joke in the outside world. For starters, there was his cartoonish appearance, with his idiosyncratic fade haircut, his rapidly expanding girth, and his penchant for attire that is fashionable only in Communist holdover states.
Kim Jong Un gave himself a vast array of elongated titles—he had soon collected hundreds of appellations of varying degrees of obsequiousness. Some were standard Communist fare like First Secretary of the Workers’ Party. (He posthumously made his father General Secretary for eternity.) Others were standard but even more obviously undeserved, like chairman of the party’s central military commission and first chairman of the National Defense Commission.
But some were pure hyperbole, like Invincible and Triumphant General. He was the Guardian of Justice, the Best Incarnation of Love, the Decisive and Magnanimous Leader. And there were many with suns: the Guiding Ray of Sun, the Sun of the Revolution, the Sun of Socialism, the Bright Sun of the Twenty-First Century, and the Sun of Mankind. There was no honorific too superlative for the new leader.