Becoming a Immortal in Various Catastrophic Worlds

'''[Main Text Completed] In the year 2352, Blue Star is in the midst of the Cataclysm Era. The entire planet is set to be completely destroyed in ten years. People around the globe are plunged into despair, and despite all efforts by various nations, nothing seems to help. At this critical moment, Xia Wang'an is reborn. "My ability is [Setting]. As long as enough people believe I am a cultivator, I can truly become one and alter the world's system." "But this requires the belief of ten billion people. The population of Blue Star isn't enough, so I need to go to other cataclysmic worlds." "However, convincing people in other worlds that I am a cultivator is a bit challenging." The glo...