Pluto’s suggestion on having a battle is accepted by Wagner and Kowalski. This is because by engaging in a battle, one can know the other party's background. After all, for the underworld organization, there’s only a handful of unique battle styles and they believed that the person they choose from Brunhild to spar with Pluto has one of the best discerning eyes to decide whether Pluto is telling the truth or not.
Stance, movement, battle style, by making a deduction from these points, they could figure out where is the origin of Pluto’s battle capabilities. If it was only common martial arts, then it will be too many to count. However, if it was a unique one, it will be easier to guess. Brunhild itself has a unique martial art combined from Savate and Capoeira. The New World Order is even
