Lord of All: Transformed into the Undead Queen

[Gender Bender + Lord + Power Struggle + Undead + Farming + Lighthearted + Endless Army] Bai Yu transmigrated and became their ideal self. But she never could have imagined that less than three hours later, it happened again. She, along with the other ten billion people, transmigrated to another fantasy world. Starting with a single castle begins the fight for supremacy, with every lord assigned a specific unit type. The type Bai Yu was assigned turned out to be the Undead, making her the ruler of the entire undead faction! — Description from novelcodex.org