World's End Syndrome

Meet Steven Pyre, your average twenty year old half-American half-Filipino kind of anti-social (technically) shut-in living in Manila, Philippines, in the middle of the zombie apocalypse, with its official name being World's End Syndrome. As he tries to survive in one of the worst places to be during a zombie apocalypse, with an immense population to be infected, not so good hiding places, and basically trapped in the country's capital, he meets the strangest pair of siblings that he joins up with to survive, who he eventually calls the Apocalypse Siblings. As the group tries to survive, they find out more about each other, and the burdens each one of them carries.