Note: Female Protagonist - Without Yuri - With no romantic involvement.

The planet Astralon is vast, its territory more expansive than a star, home to a hundred thousand races where opportunity, danger, and challenge coexist. All humans arrive on the planet of Astralon, and each person starts with a castle, summoning their own troops to compete for supremacy against all other creatures on the planet.

Alex received an undead castle. By building her castle, she can summon skeletons, zombies, specters, death knights, liches, bone dragons, ghost dragons, and zombie titans—all kinds of undead troops. As Alex continues to develop and grow, she becomes the revered Undead Queen, admired by countless people!

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In a world shadowed by death, the silent realms await, home to the undead and the Grim Reaper's sanctuary. As long as death's presence endures, the great Undead Queen will return.