Cultivating a sixth-tier cultivation technique, if there's no subsequent stronger technique that matches, it would be unknown how long it would take to break through to the seventh tier of the Sanctum.
Perhaps, a wrong choice could mean he would never be able to step over the threshold into the seventh tier in his lifetime.
Could he be content with that?
No! He was not content.
"Perhaps, submitting to this junior classmate and becoming his left-hand man would be a very good choice..."
The other party had connections that could subdue the direct descendants of the Four Ancient Empires.
The other party had cultivation techniques—just look at the two women in front of him, who reached the pseudo-seventh tier of the Sanctum in just two months, which clearly showed that he controlled several cultivation techniques of at least the seventh-tier Sanctum level!