Pretty Blood: "Rinny" (reupload/NOT MINE)

Airdate: 07/18/17 (I thought it was from 2003, too)
Description (taken from Newgrounds):
Rinny : What a monster
She prefers suffering other since was young.
Whatever she kills is earning her happiness and money.
She is really interesting.
Notes:
From what I've gathered from deleted UA-cam comments, this and a couple of these animations were actually on UA-cam at one point. They were removed because they violated UA-cam's terms of service. This is also one the earlier episodes with broken English.