"It isn't the strongest who survives. The one who survives is the strongest." After being discharged from the military, Jin Seowoon did nothing but play games like a loser. One day, he was invited to the world of "Cloyd Survival," which resembled a game he enjoyed. In that world were masters of martial arts, kings from other worlds, and notorious killers... It was a gathering of monsters that surpassed human imagination. Jin Seowoon had just one objective — to survive and become one of the top ten.