I Alone, Conquered The Apocalypse

In the year 2028 the world changed overnight. A zombie apocalypse appeared out of nowhere, turning humans into flesh-hunger undead. Threatening to end the human race.

Amid the carnage where everyone is trying to save their lives. A boy named Hakuji Ogawa takes it as an opportunity to end his miserable and boring life. For everyone it was the end but for Hakuji it was the beginning of the life he only dreamed of.

But the question remains, where did the zombies come from? and how can we end them if they are spread not just in a specific country, but across the entire globe!