Xu Ying, raised by the Hale Family, was left unable to speak by an accident. After the Hale Family's biological daughter returns, cracks form in her relationship with Childhood Sweethearts He Jingyan. She reconnects with He Jingyan's younger brother He Chen. He Chen protects her, awakening memories of her 'Little Guardian'. Xu Ying chooses her own life, and comes together with He Chen.