What would you do if you were the only person standing between humanity and total annihilation? For Cheol-su, a completely average office worker living an unremarkable life, that nightmare becomes a reality when the world ends in a fiery collision with a massive asteroid. But fate has a strange sense of humor. Instead of fading into nothingness, Cheol-su is thrust back through time, granted a singular, impossible mission: stop the apocalypse before it even begins. This is not your typical power-fantasy hero story. There are no magical swords or superpowers here, just one man, his wits, and the crushing weight of saving every life on the planet. As he navigates the complexities of changing the future, you will find yourself glued to the page, rooting for the underdog in a race against time that feels terrifyingly real. Cheolsu Saves the World is a gripping, emotional rollercoaster that blends high-stakes sci-fi tension with raw, grounded drama. Can an ordinary guy really change the course of history, or is some destruction simply inevitable? Dive into this heart-pounding journey and find out if one man can truly rewrite the end of the world.

time travel, post-apocalyptic, sci-fi, drama, survival, asteroid, thriller, character growth, man, webtoon