The emperor orders her to marry the notorious master of the Swift Blade Sect, a man said to be cruel and cold-blooded. Desperate to secure her own happiness, the timid young woman decides to follow her beloved's advice and elope with him. But on the night they plan to run away, the only person who arrives is her prospective groom, the Swift Blade Sect's master Fen Ye, expressionless, with a scar across his face.
His coldness is just as legendary as the stories say, and he stops at nothing. On their wedding night, he sets his sights on her elder sister, Mo Ruyue, just as her beloved had. To protect her younger sister's happiness, she uses the Mo family's sword-forging techniques to stay at the Swift Blade Sect, hoping to earn Fen Ye's approval.
But this cold-blooded man can sometimes show tenderness and warmth, making it impossible to tear herself away. She knows how painful it is to love a man who doesn't love her, yet she has no way out.
Only when her own sister uses her, and Fen Ye cuts off their relationship for good, does Mo Xue learn that her true identity is, in fact, so much more than she ever imagined
Gentleness is a sharp knife, a sharp knife is gentle, I hope you will be gentle.