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"The main character could return by death and the novel I about him transmigration toa world where there is a game of concerning dungeon so people in that world are chosen to part take in those games and if those chosen people fail to concure a dungeon a piece of land in the real world becomes un habitable so our main character constantly dies and returns before his death changing it and sharing his finding with his teams making it look like competence making his friend mistake him as a genius "