K'Kruhk was a Whipid Jedi during the time of the Old Republic and was the Padawan apprentice of Jedi Knight Lilit Twoseas. During the time of the Yinchorri threat, K'Kruhk was chosen to be part of the Jedi task force sent to the Yinchorri system to deal with the threat. When the task force was split into three teams, K'Kruhk was chosen to be a member of the team that would travel to the Yinchorri planet of Yibikkoror, along with Lilit Twoseas, and Jedi Masters Micah Giiett and Plo Koon. During the hyperspace jump, Master Giiett gave a demonstration of the effects of cortosis ore on a lightsaber and warned K'Kruhk to be wary of it when encountering the Yinchorri.
When the Jedi finally reached their destination, they were immediately attacked by the Yinchorri as they emerged from hyperspace. Remembering a lesson learned from Master Giiett, K'Kruhk suggested that they use misdirection to escape the Yinchorri. Jettisoning the escape pods, the Jedi were able to fool the Yinchorri into thinking they had abandoned ship. When the Yinchorri broke off their attack on the main ship to follow the pods, K'Kruhk and the Jedi were able to continue onto their assigned destination. K'Kruhk and the Jedi survived their crash landing on one of Yibikkoror's floating cities supported by massive balloons.
Unfortunately, K'Kruhk and the Jedi came under attack by Yinchorri forces there as well and were forced higher and higher, to the top of the city to escape the attack. Receiving word from Jedi Master Adi Gallia on Yitheeth that all was clear and they would soon be joining K'Kruhk and his team on Yibikkoror. All that they Jedi needed to do was to bide their time until they could be rescued by the Yitheeth team. However, the Yinchorri surrounded K'Kruhk and the Jedi who were forced to make a stand on top on the floating city. The four Jedi Knights were certainly more than capable of dealing with the Yinchorri attackers but the sheer numbers threatened to overwhelm the Jedi. K'Kruhk was even able to save his Master Lilit's life from a deathblow from one Yinchorri.