The Qi buses traveled for more than twenty hours before reaching Redbud city. As cultivators, they didn't need breaks so they reached the city around dawn. The test will be on tomorrow so they booked an inn to rest for today.
The city is jam-packed with cultivators. Ordinary people have been moved away from the city at an earlier date. Whenever a new planet is discovered these Academies will send people to test and recruit talented students. Of course, if a genius is discovered then top academies get to pick first. Ordinary academies don't even dare to compete with them.