But it confirmed one thing, the people in the flying artifact might be from Earth, from the so-called cultivation world!
As for why they might be from the cultivation world?
In their Eastern universe, there are also some legends that say before, people from their universe and those who ascended from the cultivation world, upon becoming immortals, undertook various tasks with different scopes and responsibilities. They could form different teams in the Immortal Realm, and they were not enemies in the past.
However, different types of cultivators are distinguished from one another, and even among the same kinds of cultivators there is competition, let alone among different types!
Now they are neither enemies nor friends; as long as the other party has such strong abilities and won't attack, everything is fine!