In the midst of an auspicious sign from the heavens, twins are born in the imperial family—a boy with a mole the color of cinnabar on his forehead, and a girl with six fingers. They are cruelly separated by fate, however! One is taken eastward to celestial Penglai, to embark on the long road of cultivation, whihe other is abandoned in the reeds, to travel alongside an old swordsman through the mortal realm…

As their story continues, how will the two fight destiny? Will they be able to reunite?