In Battle City , a battle ground of magical realism torn between war and chaos, the tournament of the 4th season has begun. Out of the shadows , Estelle Thornewood, a top ranked assassin and one of the top ten players emerges , a lone wolf driven by an insatiable desire for recognition with the goal to break the UPPER MANAGEMENT system. As the battle unfolds within the tournament, she and her crew fights their way to the zenith , to finally face the UPPER MANAGEMENT in a battle supreme..