When portals began to connect the world with dungeons full of monsters, people with special abilities awakened. They are known as Hunters, and their task is to neutralize the dungeons before their inhabitants can invade the world.

Jin-Woo has succeeded in conquering the Temple of Karthenon, and he now understands the nature of his powers. However, back in Seoul, he learns that an out-of-control S-rank gate threatens to destroy Japan. Only he can stop the catastrophe.