A young man who carries out various official duties as a representative of an eastern island in Phantagrande. In addition to possessing the skills to seal demon blades—deadly weapons forged during the time of the War—he has also picked up various magics to better serve as a pillar of the community. His kind and personable demeanor led not only his family, but even the people of the island to pin their future hopes on him. But this all changed when his bride, Keralbarra, was murdered. The sight of so many brutally mutilated corpses being carried into his homestead was enough to turn his hair white in but an instant. His family's demon blade in hand, he now lives for revenge. On his quest to subdue anyone even remotely suspected of using a demon blade, Krelkulkil becomes acquainted with a father-daughter pair by the names of Garoza and Osada. Though Garoza might simply be using him, Krelkulkil relies greatly on his information-gathering skills. The Harvin's interactions with the young Osada are a window into the gentle, meek personality that used to exemplify Krelkulkil.