Dr. Stone, Volume 2 of 27 (by Riichiro Inagaki & Boichi)

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! One fateful day, all of humanity was petrified by a blinding flash of light. After several millennia, high schooler Taiju awakens and finds himself lost in a world of statues. However, he’s not alone! His science-loving friend Senku’s been up and running for a few months and he's got a grand plan in mind—to kickstart civilization with the power of science!