Jason awoke in his bed with no pain, his last memory was being his piano on top of him, he doesn't remember how it got their, but the voice the voice was clear.

"Jason do you want to live?" the voice seemed to becoming from everywhere and no where

"Yes" Jason said in a weak voice, just before he passed out

Jason looked around at his room to find that it looked normal, but something seemed off to his Heart or the lack of it

"umm What the fuck! I can't feel my Heart, do I have a Pulse *checks Pulse* I have it but it seems, weak, faint like I am close to death" Jason still unsure, who was that had saved his life

"Jason okay maybe I am just in a Coma, yes a Coma yeah and this is ju-" *Knock Knock* came from his Door

"Dungeon Master are you awake yet?" a young female voice asked slightly muffled by the Door, but what did she ask "Master I am coming in" with the door slowly opened and Jason saw a Female with a pale skin almost dead like complexion, but she doesn't seem to care.

"Oh good you are awake come Master" this girl beamed with joy and happiness

"umm Who are you miss and why are you calling me Master?" Jason asked he was still looking at this female, her pale skin seemed to get her color back as she entered his room

"Oh Yeah I am your Dungeon 'Fairy' but you can call me Erika and I call you Master is because Lord Death told me to" she said with no hesitation

"What so have I died?" Jason needed to ask the obvious one

"No, your Core is fine, oh Yeah silly me, um say Status Master." Erika said with a smile

"umm Okay this is a Coma, so stuff it [Status]"

[Jason Status]
Name: Jason
Dungeon Name: Unnamed
Rank and Tier: 5/10
Level: 1
Core: Undead Dungeon
Special Skills: Pianist (can apply debuffs if heard)
Number of Undead: 0

"This tells more fuck all and Undead Dungeon WHAT?" Jason said

"You wanted to live right? You never specified how you would live" Erika said in a flat tone "Now come we need to prepare our Home for Attackers" she grabbed Jason's arm and pulled him through the door into the Core room.

The Core, shun a Pretty Scarlet Red with small traces of Blue Sapphire, the color lighting up the room and sitting in front of  the Core was a Piano waiting to be played, Jason walked around the room taking in the beauty of the Core.

"Why do I feel at home here? I never seen this place before but I feel as if I have lived here my whole life." Jason said is thoughts aloud, "Is this real? am I really a Dungeon?"

"Master Please stop wasting time, you should think yourself fortunate, Lord Death told me your world has a concept of the 'Living Dead' or 'Undead' as your Dungeon is specified, but this world has no such thing at all" Erika said in a pleading voice to return Jason to the now

"I guess I'm stuck here fuck, okay Erika, what is need to be done, don't have much of a choice" Jason said, "Wait what do you mean, this world I'm assuming that I am no longer on Earth, but Undead this world has no concept?" Jason asked with skepticism, if this is a world with 'Magic' wouldn't Necromancy be a thing.

"Well Master anything about Magic you know Forget about it. Lord Death means there is no concept so nothing that can be compared to, but first how would you like your undead to work because I have no idea, its your worlds concept." she said with both seriousness and reverence

"Now that we're on the same page say 'Create Undead or Create Disease' depends on how you want to do, but once it is done we have to test it." she said with a cheer "Test?" Jason asked "Well Death doesn't want you to fail so this 'System' he has created for you, it lets you watch a Simulation of a person that has been inflicted with what ever you do to them." Erika explains

"Okay well I've got to think, what type of Undead do I want, mmm well could go normal Walking Dead, fast like in Left 4 Dead or Resident Evil" Jason thought hard and long about it, and came to same conclusion that the Disease is what is needed.

"Okay [Create Disease]"

[Describe and missed concepts will use memories]

"Okay that makes it easier, I would like to make a two Stage Disease, First Stage is an Airborne strain that is harmless to those that breathe it in, it is dormant until the host dies or comes into contact with the Second Stage of the Disease, Second Stage is the active strain that would attack the body in an attempt to kill them, it is a fluid base, saliva, blood any bodily fluids that get into the blood stream, upon the hosts death the Disease will seize control of the body and attack anyone that isn't dead. I call the Disease ZomBro 1."

[Calculating]

[Done]

[Showing Results]

It showed that a now looking medieval peasant, given the First Stage and live on, to die by a trap within I presume my dungeon, then within seconds of the persons death his body got up then started moving around. Then a second person walks into view of the Zombie and it lunged at him biting his arm, the bitten man managed to escape to die minutes later as the infection reached his heart killing him then he got up to and copied with the Sim Replaying the same thing.

[Is this what you wanted]
[Yes]                            [No]

"Yes" Jason said he was happy with the results 

"Wow that looks so cool and yet dark." Erika said with a smile

"I have a Question why is there a Piano in here?" Jason asked, it was nice to have a Piano but he wanted to ask

"Lord Death loves the Piano and Enjoyed seeing you play" Erika replied

"But all I did was play songs that already exist or songs that had been converted into readable Piano sheets" Jason argued about that what was different about him, why not a innovator in the field, not a copycat

"Are you assuming that Lord Death is Male? its Death the one that makes your final moments comfortable, why do you think some people see their Parents if they are already dead? or call for they Mothers or Fathers when they are hundreds or thousands of miles away?" Erika stated in a Cold tone, "Lord Death like to watch you play so Death made a special Piano for you" she said with her cheerfulness like before.

"So Death wants to fuck me? FUCK!"