When Yun Shi opened her eyes again, she returned to the seventeen-year-old she had missed with Cheng Yu. She broke into his youth with future intentions, accompanied him through the wind and rain, healed his scars, thinking that she had rewritten the ending. But it was not until the end that I realized that it was not that she had traveled through time, but that her young heartbeat had spanned more than ten years, and finally had a perfect response.