Yukito Kishiro's Gunnm (Battle Angel Alita) nº2 of the 5th (and last) part. (The girl from my icon)
Some years later I bought the complete collection.
I saw the anime and I liked it a lot (its really unusual to find such a well created heroine). Its seinen, cyberpunk style and ultra violent, but some way it managed to make my cry everytime she killed an enemy (and believe me, they were real psychopaths).
Unfortunately, they changed the original ending and created a new serie (Gunnm LAst Order) that is quite bad...