The Blue Star Federation defines the "Falling Star" as an alien invader, which is theoretically correct.
After all, the Falling Star is indeed piloted by Qian Star people, and although there is speculation that this Qian Star person might come from a Refining Sect in the Longevity World, they undeniably do not belong to the Blue Star natives. It's not excessive to call them aliens.
The key issue is that the Qian Star people have not currently expressed any hostility towards Blue Star, and the True Immortal Research Institute, jointly established by Da Jin, Yellow Dragon, and the Central Earth Kingdom, maintains a close relationship with this Qian Star person. Defining him as an alien invader by the Blue Star Federation makes the position of the Three Kingdoms extremely difficult.
