The Undead Lord Starts by Taking Concubines

Winter has come, and barbarians have massacred a town on the empire’s frontier.

Salvador, who transmigrated from another world, is reborn as the lord of the slaughtered castle. His domain is utterly destroyed, and he has nothing left.

Just then, Salvador unlocks the Concubine-Taking System, which lets him obtain sources of the undead and rebuild his domain!

[Ding! Spend 2 points of Undead Source to revive one subject.]

[Ding! Spend 200 points of Undead Source to strengthen a third-tier knight!]

[Ding! Spend 2,000,000,000 points of Undead Source to establish the underground undead legion of Nasak!]

Many years later, Salvador descends upon the empire astride a bone dragon.

Even the empress must bow her proud head before him...