--
The war for humanity's true freedom from the invasion of the Demon Race was nearing its end.
Witnessing the utter destruction of the enemy space fleet solidified that for everybody who participated in this. Now, all that's left is the clean-up. Humans were now clearing up the remaining stray demons, making sure to not miss any. They don't want to give them any chance of enacting revenge, so they must be eradicated down to the last one.
The hunt was merciless. There were no negotiations. No amount of begging or compromise moved humans; they killed all demons on sight and didn't accept surrender.
Even those who were left floating in space weren't spared. Because although it's almost certain that they won't survive long exposed to the vacuum of space, it's better to be safe than sorry; they might as well be shot to death instead of getting careless and risk letting one escape.