"I sincerely wish all the families of the country to flourish intimate happiness, and precious peace to the beloved people," TASS quotes Kim Jong-un with reference to the Central Telegraph Agency of Korea (CTAC).
He noted that in the new year he will fight for the approach of a new era, when the "ideal and aspirations" of the people will be realized.
He also swore an oath of the unchanging nature of his "selfless devotion to a great people."
Earlier, Japanese Prime Minister Yoshihide Suga said that the country is playing a leading role in shaping the world order after the coronavirus era.