Inferior? From the Start, I’m an Undead Peasant, and I’m on a Rampage

[Global Lord] + [Passionate] + [No System] + [War Among the Myriad Races] + [Undead Calamity] The age of Global Lords has arrived, and everyone can awaken a unique troop type of their own. Zhang Bufan transmigrates to this world and, from the start, awakens an inferior race: the Acolyte! Just as Zhang Bufan falls into despair, he is astonished to discover that a black book has come along with him: the Undead Building Manual! Only Acolytes can learn from the Undead Building Manual. As their lord's rank increases, they can build more and more undead structures! Each undead structure either gives Zhang Bufan powerful support or provides him with an entirely new troop type! What's more, whenever Zhang Bufan sits on the skeletal throne in the Necropolis... incomplete images always flash through his mind: A figure clad in black armor and wearing a crown, holding a long sword covered in frost! On the battlefield of the myriad races, humanity is in decline and on the verge of extinction... Zhang Bufan, a human, claims the Lich King's Crown and saves all of humanity from its desperate plight! Zhang Bufan: “The remnants of the old age, there's no ship in this new era to carry you! I will lead my undead legions to sweep across the myriad races of the universe and usher in a new age!” Low-tier undead structures: Necropolis, Haunted Gold Mine, Crypt, Spirit Tower... Mid-tier undead structures: Dark Altar, Slaughterhouse, Meat Wagon Factory... High-tier undead structures: Boneyard, Dark Abyss, Flesh Furnace... [The undead in this book all have feelings and thoughts... You can think of them as undead transformed from living creatures.]