Ren Feifan was not worried about the other three protectors at all.
After all, they had already reached the demigod realm in terms of strength, and stepping into the God Sea Realm was not too difficult for them; it was just a matter of time.
No amount of time in Saint Medical Peak would be an issue, as they had an endless supply of Spiritual Energy to aid their breakthrough.
However, Man Zi was different, being from the secular world. Despite being a natural Body Refinement cultivator, the environment he experienced was limited.
For Body Refinement cultivators, the challenges faced in order to breakthrough greatly exceed those of regular cultivators because they must surpass the physical limits.
That means extracting strength from pain!
And such opportunities were very rare.
