A young noblewoman is suddenly betrothed to the crown prince, a silent figure burdened by a dangerous aura and lifeless eyes she inexplicably recognizes. Haunted by memories of a tragic past life, she learns that her fiancé was once abducted and trained as an assassin. Determined to protect the family who gave her a second chance and unable to ignore his hidden pain she gently fills the cracks in his heart, unaware that her growing devotion is turning into love.