Core Points - The meeting between Japanese Prime Minister Kishida Fumio and South Korean President Lee Jae-myung focused on economic cooperation, security assurance, and addressing demographic challenges such as declining population and low birth rates [1] Group 1 - The meeting marks Lee Jae-myung's first visit to Japan since taking office [1] - The discussions included significant topics such as economic collaboration and security measures between the two nations [1] - The meeting took place as part of Lee Jae-myung's six-day trip to Japan and the United States [1]