Become an immortal in a hundred calamities, become a saint through merit.
For the Nine Saints of the Ancient World, a great disaster is coming, spiritual energy is dissipated, and the end of the Dharma era is coming. Shuijing Saint, the head of the Nine Saints, for this reason, can only avoid the catastrophe by forcefully surviving the "Holy Tribulation".
But the "Holy Tribulation" is so easy to overcome. The ninety-nine thunder tribulations are each more severe than the last.
But the Shuijing Saint did not have enough merit to become a saint, so all the Nine Saints traveled to the interstellar era...
Teach interstellar people how to practice ancient times.
Intention: Cultivation