"THIS WILL EITHER BE THE END OF HUMAN HISTORY OR A NEW BEGINNING." The murders of several distinguished S-rank hunters rock the world, and Jinwoo knows it's only a matter of time before the perpetrators strike again. The declaration of war comes earlier than expected, however, in the form of a colossal gate looming in the skies above Seoul. With the Hunter's Association of Korea struggling to adjust to its new normal and the Monarchs picking off the top hunters one by one, will Jinwoo be able to keep everyone safe from the biggest disaster mankind has ever faced?.