His human name was Altair, and he was one of the most powerful SSS-class hunters in the world. He killed countless monsters and demons in the portals that kept appearing on Earth. But power also attracts greed, and those he considered his friends banded together to bring him down and discredit him. Dead with a heart full of hatred, rage and resentment, he who thought the end was coming, woke up in a world he didn't know. He looked down and saw that his hands had no flesh left, just white bones gleaming in the reddish sunlight. A hideous grin twisted his jaw of bone as he realized what had happened to him. Reincarnated to take his revenge, the bells of vengeance will soon ring out, and when the time is right, his name will resound like a knell of fear and terror.