—BY：World Destroyer At the beginning of the 21st century, a large number of scientists, theologians, and prophets put forward various theories about the destruction of mankind, such as self-destruction by humans, annihilation by extraterrestrial beings, or natural disasters. However, no one could have predicted that humans would be destroyed in a way that seemed both absurd and ridiculous.,All of this is thanks to the new materials brought by the planetary impact. Humanity survived once again, and afterward, they divided themselves into cities, each within a vast isolation wall, gradually restoring their ecosystems to allow for human survival and reproduction.,Brilliant City, a city built within massive defensive walls. It is called Brilliant City because it was the first human city to utilize planetary unique materials to develop an artificial sun. It is a gigantic city with a population exceeding 30 million.。