"The Rules of Survival in the End of the World"

Twenty years ago, a comet from outer space awakened monsters in the abyss of the earth. In this way, the male protagonist lost his parents, became separated from his sister, and began his own journey to the end of the world. Until he was attacked by a sneak attack, his life changed drastically... Everything that originally belonged to him began to be out of control... Concept: Survival and Death