Reincarnated in another world as a great one

A certain Kingdoms destruction part 1

As I'm sitting there on the living room with Tiamat sitting on my thighs while I head pat her a random thought appears in my head.
"What do you think the human kingdoms will do once word that the Moonlight dragon king has been 'subjugated'" as I say those words my little sister turns to look at me before tilting her head in a cute manner before answering my question.
"I think they would just send an investigation party but are you gonna let them investigate your territory" I see her change into a hateful expression when she mention territory ' so dragons don't take kindly to having their territory stepped on without permission,know I think about wasn't this entire Forest in the south the Moonlight Dragon kings,since she's mine now,which means it also my territory which also means their gonna be trespassing on my home' as I think about the situation I feel as though my prides been stepped on which's angers me 'know then since I have to stop being lazy and start working on protecting my territory I guess it's time to work on that magic that's been on my mind...as well as my totally not edge lord outfit...don't think to much of it since It makes me look cool' while saying those words to protect my sanity I hear footstep that stops and knocks on the door.
"Come in" a I say those words a beautiful women that has long pale blue hair that reaches her buttocks, along with her blue eyes,while wearing a maid outfit that barely reaches her knee this beautiful women that looks like she's in her twenties is actually the first spirit or Mio Takamiya from Date A Live, look I don't get to decide whatever the hell Nyarlathotep or Cthulhu were discussing, I got a hot and beautiful looking maid along with the 'Moon presence' skill so I'm not complaining.
"So what have you come to bother me for?" I ask my maid as I can see Tiamat expression turn into annoyance, which in turn causes her to have a worry expression on her face 'is she still scared that my little sister will punish her again' I think with amusement.
" I just wanted to say that there are some guest that have encroached on your home" as I hear that I immediately stop joking around.
"How many and how far are they"
" their be here in a day and there's approximately 700 troops" as I hear her report I immediately go into deep thought before I think of something.
"So a day of preparation, shouldn't even need a day but I want to test something, you girls don't mind me slaughtering them do you?" I ask the girls next to me.
"Their all yours onee-chan"
"Not at all Lilith-sama"
"Their all yours my mistress but what are you gonna be testing?" As Beth says that they turn to look at me with a curious expression.
" you'll see when they come,but I thought you'll hesitate to kill Mio" I ask my head maid.
"I may have hesitated before I became your maid but know I'm yours and serving you isn't so bad" she says with a gentle expression before she looks at me with a seductive smile 'your not getting any sleep this time Mio'.
"Well I'll be going to my workshop so remind me when it's dinner" I say that as I head down to my basement while thinking to my self 'what will happen when I create that magic' as I think about what will happen tomorrow I can't help but led out a chuckle of the slaughter fest that's waiting to happen.
~~~~
It was morning in the moonlight forest and the sounds of marching could be heard.
"So what do you think will happen on the expedition?"
"Who knows but whatever's in this forest is strong enough to kill a Dragon king"
"If that's the case then why do we have a small army investigating this place and not some big shot adventures."
As the soldiers start talking among themselves one of them looks up.
"Hey guys what's that up there"as he finishes those words he sees 7 elemental dragons before they come in contact with the ground they releasing a dragons roar before exploding causing a massive elemental bomb that kills more than half of them.
As they see some of their comrades frozen,burned,petrified,cut to shreds, a few are poisoned,cursed, or suffering from corrosion and screaming for help,their hearts are quickly assaulted by fear and try to run away before they spot a figure that come down from the sky with a force that shatters the surroundings creating a shock wave that blows the surrounding soldiers away.
As the dust starts clearing they see a little girl that looks around 11 years old with long silver hair that reaches her waist,black eyes that are tinge with gold,dressed in a black shirt with some golden outlines,with a black mini skirt that has some silver outlines on the frills, a pair of black boots and knee high socks,while wearing a black coat.
As much as the soldiers wanted to say why a little girl here they couldn't say that due to the overwhelming aura that the little girl was releasing.
Before they can so much as even scream in fear the commander then realized that the surroundings are to quiet as he looks around he notices that the soldiers look lifeless,like their soul had left their body's only leaving an empty shell.
Why is this happening!!!
What happened!!!
Why are they so lifeless!!!
As the commander tries to comprehend what happened he noticed that the little girl that caused this was in front of him.
"I'm gonna ask you a few questions and your gonna answer them,ok?"the little girl ask him.
"Why would I answer your questions demon Gahhhhhh!!!"as the commander noticed he lost an arm he screams in pain.
"I'm gonna say this again what kingdom are you from and you get to to live"as the little girl says in a cold voice.
"Why would I...answer your que...gahhhhhh!!!!" As his leg is cut off he screams in pain while sobbing.
"I'm only gonna say this once what kingdom are you from!" The little girl ask one more time.
"The helix kingdom"as the commander answers her he notices that there's a hole through his heart.
"So it's the Phalanx kingdom let's see...to the east it is"
As the commander watches the little girl sprout 8 devil wings and mutters something while looking at her wings before setting of towards his kingdom.
So we have stepped on the territory of an Arch demon what a sick joke.