The "God of Money", Japan's largest capitalist and a powerful figure in the political and economic circles, secretly gathered a group of young people in the "Dream Kingdom" amusement park under construction, and asked them to gamble 100 billion yen in prize money to challenge a special game that tests intelligence, physical strength and luck. Winning will get 100 billion yen. Young people who have thrown themselves into the "death game" in order to reverse their lives in an instant help each other, share joy, and gradually establish true friendship. Sometimes it is a psychological battle at a critical moment, and sometimes it is a tragic survival game where partners have to be eliminated. The protagonist of the game, Ukai Ling, is an informal middle school teacher in a small town's college entrance examination guidance school. His true identity is actually a "righteous thief" who saves the weak from suffering in modern society, that is, an anonymous hero hiding in the dark. This seemingly poor and destitute genius gambler who wants to help others win more than winning himself is about to show his skills.