Shiro was created eons ago in Sanmare. He started of as a heavenly creature with the sole purpose to slaughter demon lords and anyone else that threatened heaven.
After getting backstabbed by another angel, he finds himself in hell. A group of "Scientist" experiments on him on how to hurt his kind, torturing him. One day though, they get a bit too comfortable and forget what his kind is known for. He slaughters every worker in the facility and escapes. Wondering the streets of the Lust Ring for just a short while before being taken in by Asmodeus.