"10 minutes. In 10 minutes, my body will start melting down by the heat I use...... so if they can keep running while this 10 minutes... please forgive them and me, the bad sister who gives up the revenge..."

I think it is difficult to stop the chain-reaction of the revenges.
This flareon can't forget her sisiter who was killed but she also knows, that her sister revenged similarly.
Therefore, this flareon will stop the revenge by the death of herself but
the enemy must keep running from her maximum fire.