For over three decades, Dariel faithfully served as a soldier under the Demon King's banner, nurtured by Granbarza, one of the Four Heavenly Generals. Despite lacking magical abilities, he earns only scorn from Granbarza's son, Bashbarza, who dismisses Dariel upon inheriting his father's rank. Displaced and adrift, Dariel roams the woods and encounters a human girl named Malika fleeing from a vicious creature. Coming to her aid, Dariel is welcomed to her village in gratitude. It is there that he uncovers his true identity as a human amidst demons, his extraordinary potential surpassing even that of heroes. As the conflict between humans and demons escalates, Dariel must navigate this perilous divide, confronting former allies in a conflict that tests his loyalties and convictions.