One year the respected Comrade Kim Jong Un inspected the beautiful streets of Pyongyang including Changjon Street and Ryomyong Street several times at night. The streets of the capital city that sprang up at marvelous speed admired by the world people were decorated with colourful lighting, singing a golden age of Pyongyang. The respected Comrade Kim Jong Un devoted several nights through public holidays travelling in his car to learn about the lighting ornament of the capital city. He called some officials one day. Noting that many public buildings, service buildings and high-rise apartment buildings in Pyongyang were decorated with lighting, he said that the people living in the high-rise apartments would feel inconvenient with lights on at night. Then, he stressed that ornamental lighting should be on only until necessary time. Highest and absolute priority to the people’s interests and comfort! This is the starting point of all the thinking and activities of the respected Comrade Kim Jong Un that has been regarded as an iron rule on the road of his revolutionary guidance.