Story

Shackle grew up with only his father and his brother for a long time. Living in the outskirts of human society in a snowy land, he enjoyed the comfortable life, learning how to hunt from his father.
This all changed, however, when, trying to impress his father by hunting all on his own, he was caught by a gang of vampel hunters. These hunters, chaining him up, took him back to their village for his execution.

As the whole village cheered, he was brought into town and locked in the villages small, dingy jail along with other vampels that had been caught. He watched as the vampels all left one by one, followed by cheering and the loud crash of metal. He knew what was happening to them. Just as it was his day, he was lucky to find his brother, freeing him from the cage. He told him to never return home as it would bring danger to them. Shackle, despite his rage, obliged, running away into the cold, never turning back.

Shackle is now a part of the Nightcrawlers coven, fighting for himself and himself only, hunting victims ruthlessly. From his fight with the vampel hunters, his teeth cracked, which he now covers with his mask. His halo serves as a reminder of his past and the burden tied around his neck, weighing him down.