A demon cult known as "Magyo" pursues eternal life and immortality by consuming human blood. Their first target is South Korea, where they have infiltrated society at all echelons.
To combat this growing threat, the South Korean government established "Andamir," a special task force operating under the direct command of the President, dedicated to eradicating Magyo.
Meanwhile, Magyo devises a far more dangerous plan to awaken "First Blood," the ancient progenitor of their cult, who lies dormant beneath the glaciers of the Himalayas. In order to succeed in this plan, they need the blood of Jeon Jun-seok, a direct descendant of the legendary Joseon-era Taoist master Jeon Woo-chi, who once fought against First Blood and sacrificed everything to seal First Blood away.
Desperate to capture Jeon Jun-seok, Magyo hunts him down. But Jun-seok is nothing more than a timid and ordinary high school student-until his fateful clash with Magyo awakens his true identity. Now, alongside Andamir, Jun-seok must stand against Magyo's sinister ambitions and fight to protect humanity.
