Perhaps, just as people say, twins are born with a telepathic bond. After Qingxin left, no one ever mentioned her to me again. From then on, I became trapped in a blind spot in my memories, dreaming the same dream every night, where the people and events were different from what I remembered. I always thought my memories were at fault. It wasn't until I met Shi Yufeng, the person who kept appearing in my dreams, that I realized none of it was imaginary. Following the traces of the past and carefully unraveling the clues, I gradually uncovered Qingxin's secret, along with the old days forgotten in a corner of my memory.