Xiao Yunxu, an 18-year-old physics genius, was able to freely travel to different nodes in another timeline after overcoming the ultimate problem of quantum shuttle technology.
However, during repeated travels and observations, he made an astonishing discovery that plunged him into deeper confusion: in this endless river of time, there was a "constant point" - a man who always maintained his original appearance no matter how the years changed or how the times changed.
