In an opening scene, global turmoil is caused by the solar crisis as the sun becomes a red giant, threatening Earth. To prevent disaster, the United Nations, now known as the United Earth Government, launches the Moving Mountain project. This initiative aims to build 10,000 nuclear fusion engines to propel Earth to a new star system. However, protests erupt due to high costs and resource consumption, escalating further when the UEG disbands the Digital Life project advocating for human civilization through digital immortality.