The Starry Crescent Land had never been visited by the beings from outer space before. In fact, high up in the skies, there was a unique barrier shielding the land from any invasions by alien species. Her time-traveling experience from the future was a very rare case. Certainly, what happened with Long Fan and Long Siye was one of the rare exceptions as well.
The thought of being able to use wormholes to travel through space and time was certainly troubling to Gu Xijiu. With this revelation, she started thinking that all the so-called coincidences that she had experienced did not just happen without an apparent connection. There seemed to be someone behind the scenes, secretly controlling the sequence of every event like a puppeteer.