Sing-Shong

Dokja was an average office worker whose sole interest was reading his favorite web novel 'Three Ways to Survive the Apocalypse.' But when the novel suddenly becomes reality, he is the only person who knows how the world will end. Armed with this realization, Dokja uses his understanding to change the course of the story, and the world, as he knows it.

Humans were suddenly summoned to become "Walkers,' and they needed to clear the tower to save the world. Then, the "Regression Stone" was discovered. Walkers could now "return" to the past. And slowly… everyone left. Humanity’s last hope, "Carpe Diem," was formed by people who refused to abandon the world. But once the last Walker reached floor 100, he no longer knew what to believe. This is the tale of the only man who didn’t regress, despite everyone else going back to the past.