They Banished Me, Demons Followed Episode 12

Arthur drains his life‑force to maintain Frostwall’s defenses, holding back abyss demons single‑handed for ten years. Duped by slander, the kingdom expels this pillar of protection and ruins its own shield. Runes die; demons pour in, turning the north into purgatory. The crown begs for mercy, yet wounds run deep. Refusing to serve ungrateful royalty, Arthur balances rage and compassion. He even allies with former foes to face the real world‑eating Void threat.