In a city shattered by a viral apocalypse, a series unfolds with an unexpected hero - Saitama. After the events of the Global Athletic Games in 2014, which became known as the "jumpstart" of the infection, the city of Harran (in the Middle East country of Turkey) was closed off from the entire world to prevent the infection from spreading further, however, this only meant hell for the survivors who still lived in the city. In the year of 2015, with the city still overrun by infected, the survivors became predator by day and prey by night. In a lost gaze, Saitama manages to find himself in Harran. Even with all of his strength and power, could he really change the gruesome fate of the survivors?