Kai lunged at Jin. Closing in, he ducked as Jin slashed his dagger. Back bent low, he slashed—but Jin was gone. Suddenly, he felt a kick to his back. He used the force from the impact to perform an expeditious flip in the air, landing on his feet again. He spun around and slashed.
Jin raised his dagger. The blades crashed into each other, leaving a visible spark. And then these different blades began to ram against each other. The weilders used their might to impose pressure upon each other's blades. Only one would succumb.
Kai pushed with two blades, Jin pushed with a single dagger. The blades were still in a sword bind, locked together.