Baek Mu-gyui and the daughter of his sworn enemy, Maehwa, fall deeply in love and leave behind their warring clans. However, their departure coincides with the outbreak of war, and they return to their homelands in a desperate bid to put an end to the conflict. Upon their return, they find themselves entangled in a battle for control of a powerful, mystical sword, setting the stage for a tumultuous struggle for supremacy.
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