Only an Insane Dave Can Be the Protagonist

In a world overrun by zombies, humanity has retreated behind city walls and been divided into strict ranks, enjoying rare safety and peace beneath the glory of the Sun Queen.

Under the slogan, "Kill zombies and grow rich; guard the walls and fill your home with children and grandchildren," wave after wave of young people are sent up onto the walls, tirelessly fending off the zombie attacks.

My name is Dave: lucky Dave, unkillable Dave, self-powered Dave, Dave you had better not mess with. But I'm not Crazy Dave.