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Imagine waking to a world where every last human has been mysteriously turned to stone... One fateful day, all of humanity turned to stone. Many millennia later, Taiju frees himself from the petrification and finds himself surrounded by statues. The situation looks grim-until he runs into his science-loving friend Senku! Together they plan to restart civilization with the power of science! Senku, Chrome and Magma go spelunking for a rare mineral, but can they survive the dangers of a real-life treasure dungeon and make it back alive? They have no choice if they want to create the greatest "weapon" of modern times-the cell phone!