Doomsday System: My Infinite Army

In a shattered future where a mysterious System turns the world into a battlefield of monsters, one ordinary young man awakens a power no one else has: the ability to summon an endless army. As cities fall and portals tear open across the sky, he must learn to grow stronger, build his forces, and survive a collapsing world that is evolving faster than humanity can understand. When he crosses paths with a fierce, highly skilled female survivor, the two form a dangerous alliance that slowly deepens into trust and something more. Together, they battle undead hordes, rival players, and otherworldly invaders while uncovering the truth behind the apocalypse. But the deeper he climbs, the more he realizes his system may not be a gift at all—it may be the key to a war far older and more terrifying than the end of the world.