Abandoned to Die, Crowned by the Final Boss

Abandoned in a collapsing dungeon by her adoptive parents to save their favored daughter, Nora is rescued and adopted by Damien, the Dungeon Lord. Years later, her abusive family returns to exploit her powers and steal her talents. With Damien's backing, Nora exposes their hypocrisy on a global livestream, triggering the system's ultimate judgment. She severs ties with her toxic family, inherits the dungeon, and rewrites the rules to protect others.