Kevin, a powerful CEO cursed with a 'pure-yang' body, is fated to die by Christmas Eve unless he can find a cure. His only hope is Emma, an impoverished college student who unknowingly possesses the world’s only 'pure-yin' body. In a desperate move to survive, Kevin forces a marriage with Emma. However, as he begins to fall for her, he discovers a heart-wrenching secret: curing his condition may put Emma’s life at fatal risk. Now, the ruthless billionaire is torn between his instinct for survival and his blossoming love for the woman who holds his life in her hands. Will they find a way to defy fate, or will their joy end in a final symphony of sorrow?