She is the noble and unparalleled eldest princess Xiheng of a good country. She experienced rebellion, was hurt by love, and finally turned into a butterfly from a cocoon. Let go of your guard, just to ask for another sincere treatment. He was the emperor of the Qin Dynasty. He experienced hardships and lived a life of darkness. She was like a beam of light shining into his heart. He was afraid of losing and wanted to tie her to his side. However, she had a strong personality and was unwilling to compromise. He has great ambitions to rule the world, but she is the powerful princess of a neighboring country...