Naturally (and even so) he could have more or less predicted that counter. They may not have fought with each other, but knew of their respective skills after having now been together with the rest of the group for a fair amount of time, now.
"Sure," he quipped. "But how trained are you in using the rest of your body?" How skilled was he at not using his claw?
He feinted by stepping in rather than away. Enough so that one leg is practically between Kija's. More than not it was aimed to distract him. Although Jae-Ha had only a second (if that) to continue with his actions. His left hand shot out to very tightly grip Kija's right forearm (yes, a great risk), then sharp and forcefully yanked him in even closer. At the very same time his right hand balled into a fist, starting low to catch him in an upward blow right to his gut.