Ayato's Confession (Completed)

Ch. 13 A Dark Force

Its been almost a month since I asked Yui whether she wanted to have inmortality, and ever since then its like shes become a completely different person. She's started to be really short with me and even seem super cold to almost everything I say. This isnt the girl I fell in lobe with at all, this is some kind of a demon posing as her, I had to get to the bottom of this.
I figured the best thing to kick this off would try and watch hee throughout the day, see where she goes off and see if theres anything different in her routine. A few hours pass and everything seems normal like it always has been, no real change in anything. But then one day as I was takinf a walk around the garden, I saw something odd in the forest, like a black cloud had been growing over there even though it was completely sunny and not a cloud in the sky. "Yui..." I rushed from the house and into the woods trying to not think that this might be what caused Yui's new condition.... no it can'tbe I wont allow it.
I managed to get to the center of the forest just as the cloud had begun to darken around the area. I could hear the ominous sound of chanting and as I emerged from the trees, my heart nearly skipped a beat. In the center of the grove stood Yui, dressed in a black sacrificial gown and holding a knife to her chest. Her eyes were a pale shade of white and silver and her skin appeared almost death like compared to her normal tone. I didn't know what the hell was going on, but I was determined to save Yui from whatever demon had been possessing her.