After the Su family is wiped out, its sole survivor, Su Qinghan, flees for her life, protected at all costs by the black-clad swordsman Shen Jinghan.
He thinks he has found salvation, only to discover that his protector is the young master of Tingxue Tower, bound to him by a blood feud that will not let go.
One promise to settle their debts, a lifetime of mistakes and pain.
They fall in love amid flashing blades, then turn against each other in a tangle of misunderstandings.
When the truth finally dawns and the frosty blade is stained with blood, he realizes that all that restraint was born of deep love.
Where the wind and snow come to rest, all I wish is to stay by your side...
