魔窟を十数年守ったのに、悪者扱いされた件

Hugh, the Martial Emperor, sealed the Demon Abyss for ten years. But when the new empress, Quincy, betrays him on false accusations, the seal is broken, and demons wreak havoc. Framed and hunted by the empire, Hugh is forced into exile. But when the empire faces destruction, Quincy begs for his return. With thunderous power, Hugh rises from disgrace to save the empire he once protected, proving that betrayal comes at a deadly cost.