He couldn't see anyone in his room. He couldn't see a single shape that looked vaguely like a human. The light wasn't on and the windows had been closed, so there was little to no light in the room, but he should've been able to tell if someone was there. And they were close too.

That's when Sen decided to look at the ceiling.....But there was nothing.

He looked under his bed and once again, nothing.

"Stop trying to search me. I am right in front of your eyes, but you cannot see me" The voice said, but this time it sounded like a woman's voice.

"Who the hell are you ?!" Sen yelled, holding his guandao like he actually knew how to use it, which was a complete lie.

"Ugh....You immense moron ! I am the voice you heard in that dungeon ! I placed the tattoo on your hand to seal myself in it. I wasn't about to just stay in the dungeon like a dumbass, waiting for you to come back. Especially since I didn't explain to you how to summon your dungeon, and I had to keep it open so the other humans wouldn't be able to tell you completed it."

"...That was your doing ?"

The voice scoffed before Sen heard a noise coming from his bed. His blood froze when he saw that someone was laying on the bed. He could clearly see the way the matress changed because of the person's body, but he couldn't see said person. He got so freaked out he reacted on instinct and attacked with his guandao. It was just a normal guandao, except it was all black with a red skull with it's tongue out spray painted on the blade.

"Watch your damn weapon, immense moron !" The being said after it blocked the blade. Given that Sen hadn't heard the sound of metal clashing, the being had literally just stopped a C Rank guandao with it's hand.

"....."

Sen only stared at the being, or rather at where he thought it was. Then suddenly, the guandao got sent flying away, and so was Sen.

"You're way too weak to hurt me. But well...You do have some balls, I recognize that.....Or at least you have balls sometime, not all the time. It was proven against the secret boss. Great thinking by the way. Would've been awkward if you had been dumb or arrogant enough to try to fight it. I gotta admit I was dying of laughter when I saw you do that. I don't know how that creepy robot thingy didn't see it though. " The being said while Sen groaned and picked up his guandao again.

"By the way, yeah. The dungeon staying open was my doing. I figured they would get a bit suspicious if someone as weak as you just randomly completed the dungeon. And you couldn't actually tell them what really happened...In case you didn't know, this wasn't normal at all. The Boss wasn't supposed to lose because of the arena type battle's rules. Only hunters are supposed to be affected by those rules. However it happened....Don't ask how. I have no freaking idea. I quickly intervened before that creepy ass robot thing noticed what really happened and killed you." The voice said nonchalantly.

"Killed ?! It would have killed me if it had known how I won ?!" Sen asked, starting to freak out.

"Indeed. That's why I quickly intervened. I am just like that robot, except I have feelings for some reasons. I am just built different ya know ?" The voice, now sounding like a little girl, said.

It clicked it's tongue when Sen also laid in the bed, looking at his ceiling with wide open eyes.

"I could've died right after the Boss disappeared and I got my only chance to survive...That's really cruel."

"...Sure, whatever you say. So...How about I get to the explaining part ? I have a lot of shit to say, and....Yeah, you need to get to your dungeon as fast as possible." The being said while making a pile with Sen's clothes to put behind it's back and lay on. Sen had left in a hurry that morning and had left his appartment in a chaotic state.

"And why is that, oh mysterious being with....Many voices ?" Sen asked. The fact that the being kept changing it's voice was really unnerving.

"Why ? Because that Hunter Guild thingy has sent people inside the dungeon and they are going for the secret Boss. I don't know if they'll be able to kill it, but you don't want that to happen. With it's strengh, it will be an amazing free boss. Bosses aren't exactly easy to get, y'know ?"

"Why the hell are you asking me If I know ? Of course I don't ! You still haven't explained shit !" Sen yelled at the being....Or tried to. In the end it only laughed at his face and he blushed when he realized he had been looking in the wrong direction.

"Yeah, I should get to the explaining part now. But I'm too lazy to explain in great details. Listen well because I won't repeat myself and it will be fast. The Dungeon Overlord System that I am will help you summon different things inside of your dungeon. Ranging from creatures to structures and even treasures, i'll be your tool in shaping your dungeon to your will. Since it's a world type dungeon, you'll be able to have a shit ton of things inside of it and pretty much build a goddamn country inside of it.....I think that's what you're supposed to do actually. " The being started to make noises as if it was thinking really hard...But due to it's current feminine voice, it only sounded cute.

However Sen was too focused on the explanation to have any kind of reaction, not that he would have had one, Sen was immuned to these kind of things because of Jeol.

" Anyway, here's how it works. You get your pretty ass in dungeons, clear 'em and then you can summon back what you've defeated. However you can't summon stuff just like that. There is a certain percentage of chance that you'll be able to actually summon whatever you defeat in those dungeons, and that percentage is pretty low honestly. Anyway this is a way to get creatures, but this isn't the only thing you can get and put inside your dungeon. After conquering dungeons you'll get dungeon points. You'll be able to spend them on random stuff . You unlock new shit to buy everytime your dungeon levels up. To level it up, it's fairly simple. It grows the more hunters get defeated inside of it, and at some point it will just evolve, getting bigger and giving you more stuff to buy. However to make sure this isn't too easy for you, you won't be able to buy whatever you want. You'll spend your points on a category, like say structures for instance, and you'll get random structures in exchange. Levelling up means unlocking new categories and items in those categories. Oh and this is how you become stronger ! The dungeon doesn't just grow on it's own. The more hunters are defeated inside of it, the more you'll grow too. You'll get rewards when hunters fail to conquer your dungeon. " The being said before just randomly jumping on Sen and putting it's arms on his shoulders.

It started to poke him on the right cheek while he sat there, processing everything he just learned.

"...Alright...I think I understood everything. But I have questions. What happens if someone conquers my dungeon ? What about the rewards they'll get from y dungeon, what will they be  and where will they come from ? And also, I can't get creatures from this shop..Or rather lottery, right ?"

"If someone conquers your dungeon they'll just get random rewards from your treasury. Your treasury will include every items you get from the lottery that those hunters can use. They won't get the structures per exemple, but they'll get the weapons, potions or whatever the heck you get from the lottery. They can also just get random chests generated by....I dunno honestly. I never knew how those chests just randomly popped around and most importantly...I have no idea where their contents come fromt. Guess you'll have to find out on your own. Those will just be added to the soon to be long list of mysteries you'll need to unravel. As for your last question, nope you can't. You've got to work for those sweet little monsters. Oh and, every creatures the hunters defeat are lost unless you get some means to get them back....Same for the bosses. The structures 'regenerate' if they are destroyed though, so you won't have a problem there." The being said, still with same nonchalant tone and that little's girl voice. It was starting to get immensely creepy.

"...Wait a second...You just said something...Random chests that pop out of nowhere ? So their content will have nothing to do with my...Treasury or whatever it is, right ?" Sen asked. He appeared really hopeful and excited about something.

But before he got his answer, his got a loud laugh and a slap on the back.

"Damn ! You're one sneaky bastard. You ain't really smart, but sometime you have those small bursts of genius, huh ?! Well you already got it. Those chests come out of nowhere, and they have nothing to do with what you possess. "

"So...If hunters kill my creatures...Will I be able to open those chests myself ?"

".....If hunters kill your creatures, just kill them...And then take the freaking chests ! Hahahaha !"