Most Chinese content providers like iQIYI , Tencent Video , or Youku allow offline downloads within their mobile apps.
Which you are using (YouTube, iQIYI, etc.)? Are you on mobile or desktop ? Download Hui JiaKXSD EP1376 mp4
Ensure that downloading the content is permitted in your region to avoid legal issues. Most Chinese content providers like iQIYI , Tencent