Reassign category quickly

I have +50 files from a TV show on my Synology NAS that are currently displayed inside the OTHER folder. I have both manual and automatic Metadata enabled. It won’t fetch it automatically since titles are in another language, and I don’t want to manually fetch it for each one. Is there any way to ‘drag & drop’ or reassign all of them to the SERIES category from Infuse for Mac or ATV in a quick way?

Usually if they are all the same show if you do and edit metadata and select the correct show it will correct all in that series.

Can you provide sample of how you have the files named for that series and what language it’s in?