"About a year ago when GIB was dissolved...
There were ten mass production Tuned GR Series left on the surface.
Among them, GR-6, otherwise known as Sechs, found a new meaning for her existance.
One by one she sought out the other remaining GR and challenged them in battle.
She destroyed seven of the remaining ten.
Now only she, GR-11 & GR-12 remain.
It's very primitive to fight amlessly with no goal...
Doesn't she remind you of what you used to be?"
Nova talking with Gally about Sechs.
[Extracted from the Gunnm: Last Order vol. #1 and Edited by me.]