The End of the World: I Used Necromancy to Rule the Zombies

The apocalypse is coming, and my boyfriend pushes me into a wave of corpses for half a piece of bread. When I was about to die, I touched the ancient book and awakened the undead magic! While my former classmates were still fighting over a bottle of water, there was already a zombie army standing behind me! Are they short of food? My corpse soldiers evacuated the entire city! Are they building a wall? My corpse king smashed it to pieces with one punch! The greedy survivor base sees me as a thorn in their side, and the modified people in the laboratory see me as prey? Very good. Then let them see what a real natural disaster is! Later, they tremblingly called me - the Queen of the Doomsday Corpse.