Grimm Overlord (Male Reader x Overlord)

Mist

Y/N was now standing in front of Ainz desk on the 9th floor of Nazarick as said skeleton was looking at him with the points of burning red embers he called eyes, the two beings stared at each other in silance as Albedo shifted nervously in the corner

"How was your trip?" Ainz eventually asked, Y/N gave a slight smile "Enlightening", Ainz nodded before continuing onto the next topic seeing no use in continuing to ask "Alright, onto other business, there is a slight problem"

Y/N raised his eyebrow "Oh?", Ainz nodded before bringing a map out his inventory "as sure as I am you want to go back to Eldonia, I believe this will interest you all the same" Ainz pointed to the Demi-human territory

"There have been many strange sightings in this area" he said as he drew a circle in the territory "A strange mist has falling over the area and I don't know what it is but I sense high amounts of negative energy from it, probably a high ranking Linch or Vampire"

Y/N nodded "And how does this concern me? Death is your domain", Ainz looked at Y/N "2 Reasons, 1: Negative energy, you feed on that, don't you? 2: You can go conquer the Demi-human territory while your at it if you wish, I am too busy with paperwork to do anything about it"

Y/N looked straight at Ainz "When do I leave?", if Ainz could grin it would have been the largest smile ever seen "As soon as you want"

TIME SKIP

Inside the Mist

"Master... we have gained... more soldiers" a raspy voice spoke from the mist, "Hmm" a female voice responded as the sound of heels clicking against stone was heard "Have they fully submitted or do they still fight?"

"They... are fully yours... mistress-" *SLAP*, "What did I say you insolent creature!?", whimpering was heard from the raspy voice "S-sorry... master" it said and received a satisfied hum in response

"Soon, all of the Demi-humans will be mine, and then, the continent" the female voice said to itself, the mist lightning slightly to see an army of Demi-humans lined up with blue strings connected to the base of their skulls, blank eyes starring onward to ships docked in a harbour

"And with the manpower, and tech I stole from the Roble Holy Kingdom when they abandoned me, I will be far ahead of all others, the only problem will be the Nazarick Empire, but even they can't stand up to the power I shall soon have, right slave?" The female voice asked

"It is... as you say... master, once you have... found the Darkstone... you will be able... to meet the Dark God... and make a wish from him" the raspy voice spoke "and then YOU... shall be supreme... King?" the voice said the last part uncertainly

"Yes, I will! I will rule the seas, the land and the skies! No one will be able to fight me and I shall rule at the top of it all!"

TIME SKIP

WITH Y/N

Y/N was standing in the command room of a ship that floated in the air towards his destination, his ship was surrounded by 30 smaller ships, each filled with Y/Ns minor projects that he wanted to be tested in the field

But they weren't monsters, rather they were machines, specifically but to go where living beings could not, each was extremely advanced due to the help of Techno technology, data crystals, and Y/Ns power

They were extremely durable as they could survive a large bomb hitting them on the head, they could pick up a 1000kg with strength alone, could run at 100km/h and could learn from the opponent they face, meaning they constantly evolved to any situation as they were made of nanobots

"Lord Grimm, we shall be arriving shortly, what are your orders?" A mechanical voice asked over the intercom of the ship, Y/N pressed a small button and spoke into the mic "Have ships 1-10 drop off their units then reconstruct to land battle form"

"As you wish Lord Grimm" the voice responded as 10 ships broke from formation to land in the forest below them, each depositing 50 BB (Above robots) before shifting and becoming large mechs with cannons on their shoulders

Y/N watched as the BBs and GMs walked towards the mist ahead of them with their laser guns ready. Each robot gave off a signal that would show their location on a map behind Y/N so he could keep track of his troops and command them accordingly

The first robot entered the mist with no opposition so the rest were ordered to follow in in groups of 50 with one GM, all units followed the orders and started making out the terrain in the mist

"System, inform me if anything happens," Y/N said as he walked away from the window and sat down in the command seat, "Yes, Lord Grimm" the system replied.n After an hour of nothing happening Y/N gave new commands

"Send down ship 11-20, have the BB start building a base while the GMs clear the terrain, I want a fort up in the next 2 hours" He commanded, "Understood Lord Grimm" the system replied as another 10 ships dropped from the sky and did as Y/N commanded

Y/N watched as they started building the base but quickly changed focus when he heard a beep from the map, one of the groups had made contact and were now in a fierce battle with 300 Demi-humans

"Send 2 more groups to flank them from both sides, have a 3rd group cover their escape while a 4th prepares to follow the few that may survive back to their base, have the rest continue mapping out the area" Y/N said

Inside the Mist

"Master... we have... intruders," the raspy voice said, "Have them dealt with, send in 10 000 troops to be safe" the female voice responds, "As you wish...master" heavy footsteps were heard walking away