This work tells the heart-warming story of the little girl Qin Yue'an who was chosen as the crown prince's concubine when she was three years old. After entering the palace, she and the sick prince accompanied and supported each other. In the palace full of calculations, the prince took care of the young Yue An with kindness and kindness, and Yue An became the prince's darkness with her innocence and kindness. Bright, the two men healed each other and grew up together in the face of adversity. In the end, the prince eradicated the traitors and inherited the unification, and protected Yue'an from the fate of being buried and gained freedom. The story profoundly demonstrated the kindness and warmth in human nature, and conveyed the positive belief that sticking to one's heart and supporting each other will eventually usher in the light.