Taeyeon Kang was among the lucky few in a world divided by martial arts prowess. He possessed extraordinary abilities that he honed at the Murim Police University, an institution committed to upholding justice among the exceptional few. Although Taeyeon was dedicated to this mission, he also held a secret: to uncover the mystery of his father's disappearance and protect his clan's confidential martial arts manuscript. However, as he pursued these objectives, the Evil Murim Faction schemed to steal their prized possession. In the midst of all this, rumors surfaced about the Ghost King's reappearance, an elusive figure shrouded in secrecy. The questions remained: Who was this masked vigilante, and what was his purpose?