Five thousand years ago, an epic battle erupted between the King of Heaven and the Dark Lord, engulfing the world in a prolonged war between gods and demons. In the end, the Dark Lord was defeated, and his body was sealed in various corners of the continent by the gods. By a twist of fate, a timid and kind-hearted young mercenary accidentally unsealed the Dark Lord's left eye and embedded it into his own. From that moment, his destiny underwent a profound transformation... As this power awakened within him, his path in life completely changed. The young mercenary's dreams, the Dark Lord's resurgence, hypocrisy and sin, conspiracies and love—all these elements intertwined, ultimately weaving a dark legend...