The apocalypse is coming, and zombies are rampant. In his previous life, he lived for others, but what he did not care about his own safety was betrayal, supplies were robbed, and space was taken away. When the people he protected were pushed into the zombies, only his brother, whom he deeply disliked, guarded him. He finally saw clearly the filth of people's hearts in the end of the world. If he had another life, he would only protect his brother and never let him get hurt again.