I'm Sin Insanity. 

"Let my blood go through your veins and mind. 
With each drop falls from me, the insane will grow.
I shall help you my dear. 
Now do tell me... What you want, what do you wish for?"
 Do Remember this: 
"Don't look back on your decisions you made.
I gave you what you asked for, the choice was indeed yours.
My dear I'm not cruel, I am just inhuman. You didn't think to consider that first? I guess not. I did my part and now it's time for you to fulfill yours. 
Don't cry with that look of agony or beg for remorse because I cannot comprehend this and there isn't salvation left. What? You don't understand? 
There is a thing called fate and finality, life and death, insane and humanity.