How to Build a Dungeon: Book of the Demon King

After decades of relentless research, Aur finally stands on the precipice of ultimate power at the very end of his mortal life. Yet, to claim this long-sought ambition, he must first embrace death itself. Reborn into a realm governed by magic as the Demon King, Aur seizes his extraordinary new abilities to manifest his darkest ambitions. His journey toward absolute dominion begins with the summoning of Lilu, a captivating succubus bound to serve his will. With Lilu at his side, Aur immediately undertakes his grandest project: the construction of a sprawling subterranean kingdom. This dungeon is no mere fortress but a meticulously crafted underground domain teeming with fantastical beasts and lethal defenses. As he shapes every intricate corridor and perilous trap, Aur discovers that true mastery as a Demon King demands far more than raw strength. Building his dark empire brings a complex mix of indulgent pleasures, unforeseen complications, and grueling trials. Through each challenge, Aur refines his authority and fortifies his labyrinthine realm. By the time his vision is complete, his enemies will have no choice but to cower before the terrifying might of their new sovereign.