On Earth in the year 3700, a girl was running for her life. The man in black behind her was chasing her. The girl was forced onto a cliff.
A man in black walked out from the opposite side and said, "Yu Ning, I advise you to take him back with me without any hesitation, otherwise don't blame me for not remembering our old friendship."
Yu Ning looked towards the cliff, turned around and said coldly to the man in black opposite: "Go back with you, you will die if you go back."...
Concept: Advanced science and technology, unlimited time and space