I Am Reincarnated into the Dead, and My Profession Is a Cultivator

After Haven's death, he was summoned to another world by the Necromancer. Everyone in this world has a professional entry on their head. Some are magicians, some are alchemists, some are swordsmen, some are sharpshooters... As a summoned undead spirit, Haiwen also has a professional entry on his head - Cultivator, which can be upgraded by devouring souls. This is the worst world, the war of four emperors, the war of roses, the thousand-year feud, plane invasion, the awakening of the dungeon, the monsters and skeleton soldiers in the forest are eyeing the human empire... This is the best world, full of undead, skeletons, magical creatures, and alien races. Every intelligent soul is his training material. Elements: Hodgepodge world view + dungeon + adventure + multiple heroines + plane war + relaxation