Hi,

Ok, if so, please do following steps:

1/ Add more this code to Customize > Logo and Header Options > Add Custom Code Inside <head> Tag:

<link href="https://fonts.googleapis.com/css2?family=Noto+Serif+TC:wght@400;500;700&display=swap" rel="stylesheet">

2/ Add more this code to Customize > Custom CSS:

.post-entry blockquote cite, 
.post-entry blockquote .author, 
.wpb_text_column blockquote cite, 
.wpb_text_column blockquote .author{ font-family: 'Noto Serif TC', serif; }
.post-entry blockquote .author span, .wpb_text_column blockquote .author span{ font-family: inherit; }

Best Regards,

PenciDesign

Hi,

By default, the font style for that words will follow the font for heading titles you've selected via Customize > General Options > Font for Heading Titles. The theme doesn't support change font style for that text only.

But, in this case, we can help you do that with some modify, before we can help you, please tell me what's the font you want to use for that text ( if that's the font from google fonts, please put URL of the font here )?

Best Regards,

PenciDesign