Within the sect, the four Upper Immortals do not have the intimate bond of teacher and disciple.
After advancing to the Fourth-order, they likewise address each other as fellow brothers.
All are Fourth-order.
All are Upper Immortals.
Unless someone had already been accepted as a disciple from their earliest days, no one would willingly take on a master once they approach the Fourth-order or even after advancing to it, as it would mean lowering themselves unnecessarily.
Take Chen Jichuan for example.
Before he joined the Eight Extremes Holy Hall, he was already confident about advancing to the Fourth-order. If an Upper Immortal from the Eight Extremes Holy Hall had tried to accept him as a disciple at that time, he not only wouldn't feel grateful, but would suspect they were trying to take advantage of him.
There would be no real emotional bond afterward, instead only discomfort lingering in his heart.
Nobody is foolish.
