It is another five thousand years, time seems a bit slow, but in my consciousness, my life has only been more than twenty years now, which is too small for five thousand years. The world is changing, but even five thousand years of dust can hardly erase everything in the world. And, where are my memories of that year? I thought I was just an ordinary person and would live an ordinary life in the future, but a sudden "accidental encounter" in the library finally completely destroyed my basic facts as a human being. However, in the midst of hesitation, I gained the first and what will be the last love in my "human" life.