The heroine was once headstrong and carefree, and unintentionally shattered the hero's devoted heart. He still loves her, and when they confess their feelings in a life-or-death moment on the battlefield, they vow to stay by each other's side until old age.
But fate had other plans. After treacherous schemes rob the hero of his memories, his deep love for her fades, and all the tender moments they shared come to nothing. She does everything she can, seeking rare remedies and renowned physicians in the hope of awakening his buried memories.
Yet fate toys with them. Not only does the hero fail to remember the woman he loves, but in his dazed state, he turns his hand against the heroine's last remaining relatives. The final warmth in her heart is extinguished. Heartbroken, she resolutely leaves the past behind and sets out to find a new dawn in her shattered life. But just as she decides to begin again, the hero suddenly realizes that, without even noticing, he has fallen deeply in love with her all over again. Can the love he destroyed with his own hands ever be rekindled?