The Opening Card: I Trade the Whole World in the Wasteland

[Wasteland/System flow/Fantasy/Adventure/Funny/First and third person] Starting on a planet, my sister is seriously ill and has no money to take care of her? Scavenger Ling Yun unexpectedly won a ticket to the "Vientiane Exchange"! We don't talk about money here, only about "value"! Memories, emotions, luck, talent... Even an insignificant bad habit can become trading currency! Bite! The transaction price "Make a pig noise when you lie" has been activated! From solving survival crises to outsmarting wasteland bullies; from exploring dangerous buffer zones to dealing with mysterious traders; but also to be wary of the "Reaper Council" that comes from unknown depths and has unknown intentions! See how Ling Yun, a low-level person, uses a black flyer to navigate the dangerous wasteland world and the bizarre exchange rules step by step. He uses the most bizarre price to exchange for the most powerful power, protects his only relative, and finally... Trades the entire world?