The Bunker's Betrayed Savior
33 Episode
Humanity faces extinction as giants invade and devour, turning the world into a doomsday wasteland. The protagonist builds an impregnable underground doomsday bunker, a last safe haven. Equipped with defense facilities, resources, and combat systems, the bunker resists giant impacts. He gathers human powerhouses, explores secrets of the giants, counterattacks the giant army, and fights to redeem human civilization.