Woo Jinchul, who is also known as Akira Inukai in the Japanese version of the anime, is a significant character in the story. He serves as the chief inspector of the surveillance team for the Korean Hunters Association, a position that places him at the heart of monitoring and managing the nation's hunter activities. His appearance is that of a lean young man, likely in his mid-twenties, with khaki-colored hair that is slicked back, leaving only a small fringe in the front. He is most often seen in a formal black suit, the standard attire for an association official, though during raids he dons a more protective set of shining silver armor with blue trims and golden shoulder plates.

Personality-wise, Woo Jinchul is defined by his calm and serious demeanor. He is highly professional and rarely displays his emotions, approaching his work with a level-headed and evidence-based mindset. For instance, he initially questions reports of unusual deaths within a dungeon, as such tragedies, while unfortunate, are not uncommon occurrences. He shares with his superior, the association chairman Go Gunhee, a strong disdain for selfish behavior in hunters, valuing a sense of duty and responsibility over personal gain. Jinchul holds immense loyalty and deep admiration for Go Gunhee, a relationship that profoundly shapes his motivations. He is driven by a desire to uphold the association's principles and proves himself to be a dedicated successor to the chairman's legacy, falling into deep sorrow after Go Gunhee's eventual death.

Within the story's hierarchy, Woo Jinchul occupies the key role of a high-level inspector. While not the most powerful hunter in terms of raw magical energy, he is a formidable fighter. Classified as an A-Rank hunter, he is considered among the strongest of that rank, with abilities that border on S-Rank. His notable abilities include enhanced durability, allowing him to withstand powerful blows, and enhanced speed, which enables him to react to incredibly fast attacks. He is also a capable martial artist, primarily using his fists and durable gloves as his weapons of choice in combat. His development within the narrative sees him transition from a chief inspector to eventually becoming the new chairman of the Korean Hunters Association following Go Gunhee's death. In the revised timeline, he is depicted as an older man with a full beard and wrinkles, still wearing the chairman's black suit, a visual testament to his long service and the weight of his responsibilities.