Reborn at the End of the World: Fleeing the City of the Undead!

As humanity faces a struggle for survival at the end of the world, zombies surround the cities and a viral infection kills or injures more than half the population. Some conglomerates continue indulging themselves with resources stockpiled before the outbreak, making no effort to change. The protagonist dies after being betrayed by a conglomerate, then is reborn one month before the virus breaks out. He fights to grow stronger, stockpiles supplies, rebuilds a refuge for survivors, establishes an organization to help humanity escape, and leads those who survive the catastrophe in rebuilding their home and fighting back against the conglomerates and the zombies!