Since from what I read is that the Plex Series Agent is taking data from TheMovieDB, there should be two seperate shows listed when I search for it. But for some reason, I have a feeling that the agent is combining them into one show, even tho they are seperate.
Difficulties to match that series are to be expected, considering that they both aired in the same year, and their titles only differ in the second half.
Plex has a mechanism for this kind of situation.
/TV Shows
/ Grand Maison Tokyo (2019) - {tmdb-95718}
/Season 01
Grand Maison Tokyo - s01e01 - Red Shrimp Étouffée.mp4
...
Keep the agent of the library at “Plex Series”. Don’t change it willy-nilly, it won’t do any good.
Rename your folders like above, then perform the Plex Dance with the whole show.
Does not work. After removing, did the plex dance, changing the folder name (both TVDB and TMDB) and re-scanning, Plex Series still returns the wrong title.
Which lead me to believe Plex Series agent itself has the wrong info, as the synopsis is correct.
I presume you can test this yourself, try creating either folder with a fake video and scanning it, it will return the wrong series.