She was the docile prison bird under his authority, and the weakest point in his heart that he dared not touch. He thought that protecting her was affectionate, but he didn't know that all the storms were caused by him. When everything she cherished was crushed, she taught him what it means to lose in the most tragic way. From then on, across the country, south and north, thousands of miles of mountains and rivers, there would be no return.