Based on the cheat sheet and guidelines for the translation, here's a smooth English version of the provided text, staying close to the original tone and intent while making it readable and fluid for an English-speaking audience:

In Cheong’s judgment, no matter how powerful First Elder was, if her master joined forces with her, they’d have no trouble dealing with him.

But still, they had to be certain.
What if her master got injured or torn up? It would take forever to heal.
And the pain would last the whole time.

This wasn’t the Western continent; this was …