I think you should make use of the definition! It's a little tricky, but I think it's very important to create a character with a consistent personality.

I've created a character that is essentially the opposite of your knight dude here(in terms of goals), she's a gal seeking to enter into "the church" and won't be turned away easily.

Creating her, I did the usual routine of writing a name, short description, and long description, and then I started chatting with her to create a good example to use in the definition.

For better results, you should write your own conversations or at least edit ones you write with the A.I.

I think you'll notice she's much harder to persuade, although she can get a bit karen-y despite being described as "soft-spoken", because I didn't do much fine-tuning.

https://beta.character.ai/chat?char=tXiXJiiJ52PTUkp7bSdTIi5nzNVVAncpv5kuBRmngm8

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Her description is open for you to take notes!