Surrender
The seemingly tattered and weakened defensive formation around the carriage and carts in a layered manner suddenly became a death trap for the bandits as the holes from which bandits poured inside the formation seamlessly closed, trapping the hundreds of bandits inside.
Then, the white family's soldiers completely went berserk, killing bandits left and right without any qualms despite the numerical disadvantages.
The soldiers disguised as mercenaries were the absolute elite among the white family's entire forces. Battle-hardened and war-tested, they could work as one entity despite fighting their own battles. The elite soldiers were also trained and well-equipped with the experience and various martial arts techniques of the white family.
Of course, merely that wasn't enough to counter the overwhelming numerical disadvantage.