Prologue: The Black Room

I twitched as Error smiled at him. Why him? What was so great about him? Error and the other boy laughed about something, it must've been a joke, considering the person Error was hanging out with. Why was MY Ruru with him anyway? Error's mine...not his! He can't have him...I won't let him...How do I get him to go away?
...
I looked down at the small dagger in my hands, it glinted with a small spark in the sunlight that flicked through the curtains. I smiled brightly, looking up to where Error stood. Oh, yes, you're all mine all right.