A debt-ridden, energetic young woman is hired as the exclusive caregiver for a mobility-impaired CEO. Diligent and grounded, she is solely focused on earning money to support her family; the outwardly cold and detached man quietly takes note of her hardships, secretly setting aside savings for her. Vibrant and enthusiastic, the young woman slowly melts his closed-off heart, accompanying him as he gathers the courage to try standing again. Yet a hidden past soon resurfaces—is this companionship, which began through employment, one where she heals his loneliness, or has he long been quietly filling his heart with gentleness, silently guarding her?