A short video, recorded on the seventh day of a planetary landing, showed an astronaut, who was later labeled as reckless, carrying a coin, which according to records, was a memento from his girlfriend. The coin accidentally fell from the astronaut's person within the weightless exploration vessel. Due to human error, the coin entered the core of the spacecraft, triggering an explosion. This explosion in turn indirectly caused the explosion of special substances on the planet.,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.,A loud rumbling echoed from the spotlight, startling the over 100 journalists present. They all turned to look at the stage.。