Here is the original version:
I am the bone of my sword
Steel is my body,and fire is my blood
I have created over a thousand blade
Unknown to death,nor known to life
Have withstood pain to create many weapons
Yet those hands will never hold anything
So as i pray...
UNLIMITED BLADE WORKS.

Here is my version of Nanaya Shiki:

I am the owner of your existence
Speed is my skill and knife is my weapon
I have killed over a thousand people
Unknown by the police,nor known by The Church
Have withstood boredom to rape many girls
Yet those victims will never came back to life
So as i kill...
UNLIMITED ASSASSIN WORKS.