If you have a to the video page, I can provide instructions on how to download it using legitimate tools.
"Guan JieM" might be a username or a shorthand for a series. Download Guan JieM EP07 mp4
This specific phrasing suggests it might be a niche video essay, a student project, or content from a specific platform like Bilibili, YouTube, or a private educational site. To help you find or download it, could you tell me: If you have a to the video page,
(e.g., a specific YouTube channel, Bilibili, or a course website?) a student project