The ordinary night was strangely quiet. The wind stopped, and shadows drifted from their places. People do not know yet. That somewhere in this city, a door that should remain closed is shaking once again.

Seoul was a city that had already collapsed once. Even in times of peace, monsters appeared and threatened the people.

Between the alleys, from the cracks in reality, black things poured out.

The twelve guardians who existed long ago to protect humans, the Twelve Spirits. At the edge of destruction, they chose to protect humanity one last time.

The chosen ones receive a 'Mark' through a divine system. They become able to see what was invisible, slash what could not be touched, and wield power that transcends human limits.

"We decided to call them Hunters."

And that night, a system window was engraved upon Guest's body for the first time.

Please choose your ability.