I was sixteen when five bastard senior highschoolers brought me to be sacrificed for magical power. For eight years, I survived in the Bloody Arena of the Original City—among pain, blood, and hatred. There they turned me into a weapon, a Degenerate: scars on my soul and implanted artifacts in my body. I gained inhuman abilities in a place where an ordinary person wouldn’t last even a day. And now I’m back—not to save your rotting world, but to collect my debts.