A Vow of Joy and Sorrow

Lucian, a powerful CEO born with a pure Yang constitution, is destined to die before New Year's Eve unless he bonds with a pure Yin counterpart. He discovers Scarlett, a struggling college student—and the world's only pure Yin. To save his life, he marries her. But when he learns that the healing union will endanger Scarlett's life, Lucian—now deeply in love—faces an agonizing choice between saving himself or sacrificing everything for her.