~ the exorcist's sister - blue exorcist oc fanfiction.

~ part 11

Yukio's Pov~

its been a month since she fell asleep. and she still hasn't woken. she's been in a light coma having brief moments of contentiousness. blabbering little bits of nonsense. about gehenna and mother. her temperature had dropped but it was still enough to bring an ice cube to a boil instantly

I finally decided to call mephisto.

a little white dog trotted down the hall and stopped at my feet. in his mouth he held a sleeved sword. it was just like rin and kiras swords but the case was black with a dark blue and white stitching detailing. I took it from his mouth. and with a puff of smoke he turned into mephisto.

" so how is she?" mephisto said dusting off his trousers.

" not well she's still sleeping. I've tried everything. no medicines are working" I coughed a little. " and who's sword is this?"

mephisto laughed. " its kiras from when she was younger. I sealed all her demon intent and malice in there. I've been keeping it locked away for the past 10 years. " mephisto took back the sword. " if this is ever opened she will become an extremely powerful demon. with power almost equal to Satan." he gripped it tightly. "she will be a danger to this world and gehenna if this sword is ever opened. she will without a doubt lead to the death of this world and the next." he spoke seriously.

I nodded. " are you sure she's that powerful?" I asked. "she's only 15 years old, she can't cause that much damage... can she?"

" she opened the gehenna gate at birth. and then again at 15, there are thousands of researchers searching for the power to do such a thing. yet she can do it with ease. " mephistio walked into the room. "and thats even with out her full powers. her power in still not fully measurable. it grows with everyday" he knelt next to kira and looked at her restful innocent face. " her power is unable to be fully sealed in assiah. and a time will come with her body can no longer be able to contain the flames"

he strolled over to kira. " really, so she's unstable, and what will happen once she can't contain the flames" I was worried. I may not have known kira for long but she was my sister. I have to protect her. there was so much i needed to know about her. her secrets i wanted to know.

" its simply really. she will slowly burn from the inside out and she will either die or become an essence of power like her father." mephistio pressed a hand on her head and drew it back front the heat. her temperature was off the charts. "woah thats hot."

mephistio nodded to himself and took her normal sword from me. he then started to usher me out of the room. " so what going to happen now. is there anything we can do?"

" oh yukio you sure are clueless" he lifted her sword and removed the sleeve. he closed the door and pressed us against the wall.

" mephistio don't. you'll let out her flames. " I shouted reaching for her sword.

" that's the point." he laughed as he drew the sword. "we let out her flames and stop them from burning her from the inside. the longer they are contained in the sword the harder it is for her body to handle keeping them in" instantly a blue light flicked at the base of the door. I stepped back as blue flames began to burn the door. they lapped violently. 

suddenly rin appeared on the end of the corridor. his eyes widened as he saw the flames coming from the room. he sprinted up "Yukio is kira still in there!!" he shouted grabbing my shoulders. i've never seen him so worried for someone like this. i nodded quickly.  he turned to the door and twisted the door knob.

i reached out to stop him "wait rin no!" he pushed open the door and the blue flames consumed him. he shield himself from the harsh flames. mephistio pulled be back as he fled the powerful flames which reached half way down the corridors.