One day, suddenly, a shadow mask appeared in the city and started destruction everywhere.To stop it, three shoals came. But they couldn't do anything about the mask.Finally, the three shoals used an ancient seal to contain the shadow mask and split the seal into three parts.Then they seal each of the three parts in different places.
(80 years later)
Suddenly, a shadow, like a beast, appeared in the middle of the city. It started devouring people and spread across the city within a few months.The government suffered significant losses, and scientists created masks and an organization to combat the beast-like shadows.They named the organization Shadow Hunters.
