Ki-ja is the current Hakuryuu, inheriting the white dragon deity's bloodline and powers. These abilities manifest solely in his right arm, which transforms into a scaled dragon claw. He can alter the claw's size at will, from normal proportions to a massive appendage nearly the size of his body. He typically wraps the arm in bandages to conceal this distinctive feature during daily life. Born into the secluded Hakuryuu village tasked with preserving the white dragon lineage, Ki-ja's early life was marked by isolation and reverence; villagers treated him as a deity, resulting in a sheltered, pampered existence with limited exposure to the outside world. A jealous attack by his father, the previous Hakuryuu, scarred his infancy, leaving four distinctive scars on his back. Though initially forbidden contact, Ki-ja later reconciled with his dying father. He witnessed the elder's loss of dragon powers and embraced the scars as symbols of the white dragon's fervent dedication to service. Ki-ja possesses a headstrong, dutiful, and polite demeanor deeply shaped by his upbringing and the village's teachings on the dragon warriors' legacy. He pledges unwavering loyalty to Yona as King Hiryuu's reincarnation. Initially, he rigidly believes only dragon warriors should protect her, causing friction with Hak. This devotion fuels a competitive streak, especially when others receive praise or outperform him in safeguarding Yona. His sheltered background renders him naive about practical matters. He maintains a preference for cleanliness, comfortable accommodations, and refined meals, openly expressing discomfort with rugged travel conditions, and harbors an intense aversion to insects, avoiding infested areas entirely. Accustomed to perpetual village reverence, Ki-ja displays gullibility, often falling prey to sarcasm or practical jokes, particularly from Hak. Nevertheless, he demonstrates perceptiveness in critical moments, such as detecting Shin-ah's unusual behavior caused by ancestral possession or publicly pledging the dragons' loyalty to Yona within Hiryuu Castle to undermine political rivals. His initial rivalry with Hak evolves into mutual respect and camaraderie through shared battles and dedication to Yona's cause. His worldview expands significantly during the journey. He learns to value allies beyond the dragon bloodline, including Hak and Yoon. Confronted with Zeno's revelation as the original Ouryuu, Ki-ja grapples with the weight of history. He acknowledges his own fortunate circumstances compared to the ancient dragon's suffering while recognizing parallels between himself and the passionate, boar-like original Hakuryuu.