After Being Expelled, I Awakened a Barrier Skill and Became Unmatched

• overpowered-mc
• system
• weak-to-strong
• revenge
• dungeon

Minato Okabe lived a life of isolation, shielding himself from a world that had always caused him pain. When he and his classmates are summoned to a fantasy realm to serve as legendary heroes, Minato finds himself the odd one out. Labeled as useless and devoid of combat prowess, he is ruthlessly betrayed and cast into a lethal dungeon designed for certain death. However, in the depths of despair, he discovers that his seemingly weak Barrier skill is actually an absolute defense that can be evolved into an unstoppable force. Now, armed with a power that defies the laws of this new world, Minato begins a climb from the weak to the unmatched, seeking retribution against those who discarded him. Will he shatter the walls of his heart while tearing down the whole kingdom?