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In the span of a few minutes, the large army of Lizardmen was reduced to a sea of Cores, as their dismembered bodies turned into black smoke and disappeared.

"I-I… I killed… monsters…" muttered Sakura, as she glanced at her sword covered in blood. She had barely received any damage, as her entire body was made of very resistant materials.

"Have you never killed monsters before?" asked Arthur.

"No… Well, I've never entered a dungeon… I always served my former owner inside of his house, I made his bed, cooked for him, cleaned the house… and all of those things… But never invited me to a dungeon…" said Sakura.

"Look at this treasure throve… There are around 36 Cores… and some Ability Cores as well!" said Noah, as he smiled greedily.

"Quickly gather the Cores and let's get moving, we haven't explored fully this place, I can feel the presence of more monsters nearby," said Noah.

"Yes!" said Iris and the rest, as they quickly gathered the Cores while Noah cleansed his clothes.

"Do you Robots consume Cores to grow stronger?" asked Noah.

"No… We cannot, Cores can only be consumed by humans," said Big Sis, as she waved her legs and arms, taking the blood out of her metallic body.

"Then how are you planning to grow stronger? Hm… Perhaps new mechanical parts, but they will surely cost a fortune… Well, I suppose that such plans will be for later," said Noah, as his party finally gathered the Cores inside the Dimensional Storage Ring.

"I am confident in my own strength. However, War Machines and advanced Fembots such as Sakura can be upgraded through new types of Magic Core Batteries, which can be created through Axis Corporations, or custom created by a talented Creation-oriented Hunter, if enough Cores and Magic Crystals are used, and often other materials mined from Dungeons," said Big Sis.

"Oh? Do you detect any of such materials?" asked Noah.

"…Actually, the trees of this jungle and the soil are filled with Mana, I have been packed with several tools for the mass extraction of Dungeon Resources, as I am an advanced model that not only defended Hunters but also extracted materials safely," said Big Sis.

"You're saying that this soil and the trees in here are valuable? And how come people don't take them out?" asked Noah. action

"Perhaps the amount of effort that it would be needed makes it not worth it, especially because this is a low-level Dungeon, and the value of the products does not outweigh the resources spent to mine them," said Big Sis.

"And you're telling me that you can mine them no problem? Then how they haven't done it yet with your models?" asked Noah.

"As I said, my own model is very expensive, the owners of my model would most likely use me in higher level dungeons, resulting in this one being almost abandoned," said Big Sis.

"Interesting, then get to mine some, Arthur, come here," said Noah, as he told Arthur most of what Big Sis said.

"Eh? Mine this ground and trees?! Well, I think we can save a lot in the Dimensional Storage Ring… But how will we be able to process it?" asked Arthur.

"That's easy, I have a processor within my mechanical parts, it is a very easy thing to do, and as long as I am supplied with Mana by you lot, I should be able to process the dirt and wood into compact magic resources," said Big Sis.

"Wow… I never thought about that! So we are mining now?!" asked Arthur.

"You help her save the resources, we'll get rid of the monsters marching to us…" said Noah.

"Master, there is another army… no, two… Huh? Three… three armies of over 30 Lizardmen are charging towards us," said Jon.

"So many? How is that even possible?! Low-level Dungeons are supposed to have low spawn rates!" said Timassa.

"Oh, that's because of Noah-sama! He's capable of using his powers to enhance the production of monsters within a dungeon!" said Iris.

"That's… Isn't this cheating?! Such a power would be paid a fortune by higher-ups! The amount of efficiency that it could be achieved by farming so many resources so quickly is baffling…" said Timassa.

"Well, we can talk more about it later, let's get to it," said Noah.

Big Sis began to shapeshift her gigantic spider-like legs, as the two on front transformed into large drills, while her arms became large claws to take out the dirt.

"Hm…? I can detect… greater forms of mana below this… Magic Crystals and… Magic Alloy? What are the chances?" asked Big Sis, as she began to drill, after reaching ten meters in a few seconds, she found several shining crystals below the ground!

"That's… Magic Crystals and… Eh?! Magic Ores?!" asked Arthur in surprise, such materials cost a lot of money in large quantities, and were used for a variety of purposes, such as batteries for technology, the creation of armors, weapons, robots, buildings, flying cars, flying ships, and more!

Noah smiled, as he asked the Blood Progenitor if his Blood Core could provoke such things to emerge.

"Hmph, most likely. The power of my Blood Core is enormous! By the release of corrupted energy similar to the Miasma that changed this world's fate, it is possible to make dungeons produce more resources… It seems that the more power you unlock from my Blood Core, the more this ability intensifies… (Grr… Does this means that this brat will end up having even more money now?!)" said the Blood Progenitor.

"I see… Thanks for telling me so obediently, Dracula… Now time for some slaughter, we got a large pack of Cores walking directly towards us! Perhaps today I might finally get to E-Rank in terms of Attribute Values? Well, let's see how far this can go…!" said Noah, darting towards the battlefield and releasing his Blood Claws, slicing through the Lizardmen's ranks like a hot knife through butter!

The Lizardmen were left in shock, as Noah's prowess and speed had been enhanced, the more blood he drank from them, the stronger and faster he grew!

"As long as I can drink their blood, I can keep up my buff Skills and almost double my overall power! This is what I call efficiently grinding Cores!" laughed Noah, as he resembled a crimson demon slicing through anything on his path of bloodshed!

"Uwah, Noah-sama, he looks so handsome while embracing his Vampiric nature~!" said Iris, as she cut through the ranks of the Lizardmen almost at a similar speed to Noah, slicing them off with ease.

"GRRKAKAAHHH!"

Suddenly, two large Lizardmen emerged, wearing harder armor and weapons!

"Oh?! Lizardmen Warriors? Do they have similar ranks to Goblins? Interesting!" laughed Noah, darting over the shoulder of a Lizardman Warrior and then generating a large Blood Blade, slicing through its neck!

"GRRAAKKHHH…!"

Slash!

"However, I am not as weak as that time when I had to struggle with Goblin Warriors… Killing Lizardmen Warriors shouldn't be much of a problem," thought Noah, as the Lizardmen Warrior he killed exploded into black smoke.

Noah quickly jumped off it before it completely turned into smoke, and reached for his next prey, seeping his claws into its eyes as the Lizardman Warrior groaned in agony!

"Black Thunder Arrow!" roared Timassa, as the powerful thunder attack reached the Lizardman Warrior, electrifying it as it died on the spot!

Boom!

The bloodshed continues, as the Vampire Family cannot lose this opportunity to finally gather resources and Cores to grow stronger!

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If you are enjoying this please make sure to check my other : "My World Traveling System: The Harbinger of Death"!

It has similar genres than Vampire Overlord but it is more about personal growth, the main character changes a lot over time until becoming a ruthless anti-hero! Check it out!