(Y/n) POV

"Everyone ready?" I said to the seven people that were in front of me, the all hesitant;y nodded and I rubbed my hands together 

"Okay then,let's go" I said and a large (f/c) color circle showed up around our feet and we vanished a few seconds later. We then appeared in a new world where the sky was black and the ground was red. RWBY all fell to their knees and they looked as if they were about to throw up 

"what did you just do?" Blake asked trying to not spill her munch 

"I teleported us to the dimension where the demon is" I said looking at a tower that was standing in front of us. It had spikes on top and had skull like designs down the length of the tower. We carefully walked up near the main door to try and not alert any guards. We got within about 50 ft of the main gate when I said quietly 

"Alright, guys, I'm gonna need a distraction" and Yang said 

"But what if we get caught?" 

"Even better, remember, your weapons can kill them with ease, they aren't demons, their just satanic worshipers who gave themselves to the demons" and they nodded. Once they got out of view I laid closer to the ground to avoid getting spotted 'I wonder what their gonna do for a distraction?' I thought to my self till a loud explosion made the ground shake slightly 'Not what I was expecting' I thought as most of the guards started running in that direction. I got up and started sneaking towards the front door. I rounded the corner and I ran right into a guard 

"Hey" he said and attempted to stab me with his spear but I caught it and twisted his wrist which made him let out a yelp of pain so I quickly broke his arm and grabbed his head and smashed his head into the wall. He dropped to the ground and I quickly crept away in case more guards heard him when he yelped. I hid behind a column and a few more guards came running 

"He's dead, alert everyone, we have intruders inside" and they all ran of to somewhere outside'Hope their okay' I thought walking through the halls again. I eventually found a larger room that seemed to look like some kind of arena 

"So, you came"a voice said behind me. I looked behind me and saw a kind of short girl walking towards me, her amber eyes kind of glowing 

"Who are you?" I asked her and she stopped about 30 feet away from me 

"My name is Exile, and I am the demon of this dimension" and I paused for a second to size her up 'So this is a real demon, I didn't imagine anything like this' I thought as we stared at each other 

"So, how about we get started?" I said to her and she nodded slightly 

"Yes, we should get started soon"

Nova POV

We just finished lighting most of their ammunition on fire and lot's of guards were heading our way "How many are out there?" I asked Ruby who was looking outside 

"A lot of them" 

"How many specifically?" 

"too many" and a few came in. We swiftly cut them down and I noticed another door that lead to some downstairs area 

"Hold on guys, I'll be right back" I said and went up to the door, it seemed to be reinforced and extra strong. I managed to open it enough for me to slip in. I started to walk down the stairs behind it and burn a few more guards on my way down and I then came up to a equally reinforced door and I could see someone inside. I got a key and opened the door and went up to the person that was chained up. I could see the clear signs of mistreatment, the obvious cuts, bruises, and various other wounds on her body. Her black hair was very long and went down to her hip and she barely had any clothes on her 

"Hang on" I said and untied her hands which let her fall to her knees 

"thank you" she said weakly and I picked her up by her shoulders 

"What's your name?" she said and I helped her to her feet 

"It's Nova" and she looked at me so I could see her bright emerald eyes 

"Mine's Amagi" and me eyes widened 

"Hey, do you have a brother?" and she looked up again 

"Yeah, how would you know that?" 

"Because I know him, he's here, right now" and her eyes widened and she grew a small smile 

"At least he's okay, where is he?" 

"I think he's fighting the demon right now, but we shoul-" and she cut me off by jumping up to her feet and saying 

"No, no he shouldn't be fighting her, she's far to powerful, can you take me to him?" and I nodded "Follow me" I said and we both ran back up top. We came up to the top and RWBY and Lisa had finished of most of the guards but there was still a few more. Amagi quickly ran up to one and jumped up so she wrapped her legs around his head and twisted incredibly fast which made his head turn 180 degrees and made a sickening cracking sound. The rest was fairly easy and we saw a fairly large explosion come from the tower 

"Oh no" Amagi said and started running towards the tower 

"Who's she?" Weiss asked and I started following her and said 

"That's Amagi, she's (Y/n)'s sister" and we all started following her. We eventually caught up to her and we ran into the tower. We came across a large room that was fairly torn up and we saw (Y/n) facing off with what I'm assuming is the demon. Both were fairly hurt but anyone could clearly see that (Y/n) was running out of steam 

"Time to end this" the demon said and rushed (Y/n) who was on his knee breathing heavily with blood coming out of his many open wounds 

"Oh no you don't" Amagi said and rushed her too.

(Y/n) POV

'This was harder than I thought it would be' I thought to my self. I was pretty badly messed up from fighting Exile. I fell to one knee and she said 

"Time to end this" and I was waiting for a hit that never came. I looked up and saw that someone hit Exile away from me and it was a girl 

"Who are you?" I asked her and she turned slightly so I could see half of her face 

"Oh come on (D/n), you really don't remember me?" and I could feel the tears welling up in my eyes 

"A-amag-gi?" and she turned all the way around 

"Yes, I missed you so much" she said and we both hugged tightly. We both were letting ourselves cry onto each others shoulder and she pulled away 

"Listen little brother, how about I kill this bitch and then we can catch up, how's that sound" and i nodded wiping my eyes 

"Good, now run along to your friends" she said and I walked over to my friends 

"Go get her, Amagi" and I could see the fire in Amagi's eyes.

Amagi POV

'This bitch is gonna die for attempting to hurt my brother' I thought glaring at her 

"So Amagi, you managed to escape?" 

"No, I was let out, and then I proceeded to kill every single one of your guards" I said smirking at Exile 

"No matter, they were all weak, by the way, have I ever told you how much I've wanted to see just how strong you are?" and she took a fighting stance 

"Me too" I said taking a more defensive position. we both then rushed each other, she tried to round house kick me which I blocked and I grabbed her leg and threw her away 

"Come on then" I said motioning her to come closer, she gritted her teeth and came at me again. Her anger made her movements less precise, and more blunt and easy to calculate. I landed I hard punch straight to her stomach which sent her flying back into a wall. she jumped down with her clothes torn up and she said 

"Enough of this, time to make this truly interesting" and she started to glow black. 'Demon form' I thought to my self as she transformed to a rather ugly creature (it looked like this: http://vignette3.wikia.nocookie.net/doom/images/b/b1/New-Doom-screenshots-feature-Baron-of-Hell-4-1024x613.jpg/revision/latest?cb=20160515113437 ) 

"Neat" I said looking at her new form 

"Die" she said in her new demonic voice which was now deeper and more scary. She attempted to crush me but I managed to dodge it and jump away 

"Since you transformed, I think I will as well" and I started to glow white. I felt my body change and energy flowed through my body and I was now in dragon form (It looks like shooting star dragon) 

"Now let's go" I sad and we both punched each other's fist. Neither of us made any progress and we kept pushing against each other. the blast then sent us both back and I recovered first so I grabbed her right arm and put my foot on her face and started pulling. I managed to rip it off, she let out a loud scream of pain and she grabbed me and threw me back away. She growled so I roared back and she decide to charge again so I waited till the last second and moved out of the way and I grabbed her other arm. I broke her arm by twisting her arm the complete wrong way so it bent 90 degrees the opposite way and I then ripped it off like her other one. She fell to the ground and went back to human form, so I went back as well. I walked up to her as she crawled away on her back and eventually hit the wall and looked at the stumps that were where her arms were supposed to be 

"I-imp-pssib-ble, you were so hurt and-" I cut her off by raising my foot 

"When dragon's get hurt, we come back that much more powerful" I said and she now had a petrified face 

"When you get to hell, tell them Amagi sent you, and then apologize for the inconvenience"

(Y/n) POV

I just watched in awe of how Amagi beat the demon 

"When you get to hell, tell them, Amagi sent you, and the apologize for the inconvenience" and she started stomping on the demons head, hard. We all felt the ground shake each time she brought her foot down and saw the wall cracking around where she was. In a few more moments she stopped once she reduced the demon's head to a pile of mush and she wiped her foot off and started walking towards us. Once she got over to us we wasted no time hugging each other again 

"So, (Y/n) , aren't you going to introduce us?" Yang said and I rubbed the back of my head 

"Oh right, Girls and Weiss" 

"hey" 

"This is my sister, Amagi" 

"Hello, girls and Weiss" she said waving. We all then heard a very loud stomach growl and Amagi rubbed the back of her head 

"So, you guys got any food back where you came from?" 

"Yeah, we do" I said and teleported us back to our dimension.

Time skip

3rd POV

"I can see the resemblance" Lisa said as she watched (Y/n) and Amagi wolf down all the food in front of them. the two eventually started fighting over a chicken leg and it ripped if half and they just dropped it and continued 

"Now that was some good stuff" Amagi said rubbing her stomach 

"You know *burp* you should get some better clothes than what you have " (Y/n) said looking down at his sister as she laid on the floor of the room 

"Your probably right" she said getting up "You, your helping me" she said pointing to Weiss 

"Ugh, why me" and Amagi leaned closer to her 

"Because I told you too, you got a problem with that?" 

"N-n-no ma'am" Weiss stuttered out and Amagi clapped her hands and said 

"Great, let's go now" she said and dragged Weiss out of the room 

"you sister is very interesting" Lisa said shaking head 

"yeah, but that's one of the reasons of why I would always love to be around her"  I said laying on my back happy to have my sister back.