There will be a season 2, but its still in development. I have removed the episodes since they're empty. Episodes can be added once a concrete release date for season 2 is announced.

There have been no updates for the season 2 for a few years, especially since the actress has passed away.

I have removed season 2, for now. It can always be re-added.

Please remove the second season (entitled SULLI) from Persona (2019). Since the actress passed away, Netflix has confirmed that the two episodes that are listed as a second season here have been turned into a tv special, not an additional season. This TV special already has an entry on TMDB (https://www.themoviedb.org/tv/246170-persona-sulli). Persona (2019) should only consist of one season (4 episodes). Thanks.

OP keeps closing this but it's not actually solved.

The second episode is even added thrice, as it's also listed in the movie database as it was also part of a Korean festival.

https://www.themoviedb.org/movie/1169803
https://www.themoviedb.org/movie/1169803/discuss/67d9becf8ec5c4ce442cc555

Same thing goes for the first special episode:
https://www.themoviedb.org/movie/1182190-4
https://www.themoviedb.org/movie/1182190-4/discuss/67d9c10517c1af8db32cc6c6

// EDIT:
The way I see it, there are two options to list/fix this.

Originally a second Persona was planned that would be five episodes long, with Sulli casted as the main character in all of the episodes, and each episode directed by a different director. In the end, only one episode was finished, 4: Clean Island (which received a very limited one-theatre showing in Korea), while the others were still in production.
After the death of Sulli, the documentary created by Jung Yoon-suk (which was always gonna be released on Netflix, as mentioned during the interview with Sulli, around 01h18m), got its premiere at BUSAN film festival.
Netflix decided to release them together as Persona: Sulli.

You could either go the Netflix way, as Netflix is the distributor, and list Persona and Persona: Sulli. Or combine them and put the later as season 2, as it was meant to be season 2, but... that happened, and there became no episode 2-5, and instead Netflix decided to combine it with the Documentary and release it together. I honestly have no preference either way, and can get reasoning behind both ways.

Or, you could make up a whole new way and put 4: Clean Island in specials, and the documentary as a movie. But honestly I don't think that's a good idea. It's super random, and the documentary wasn't released as a movie in a wide release.

Either way the 4: Clean Island movie entry should definitely be nuked.