This is the 2023 Korean music/romance/comedy TV drama series, also known as "Diva on a Deserted Island," "Desert Island Diva," and "Diva of the Deserted Island."

From MyDramaList: https://mydramalist.com/745215-diva-of-the-deserted-island
"Mok-ha has always dreamt of becoming a singer. During middle school, however, she ends up on a deserted island where she manages to survive alone for over fifteen years. When she's finally rescued, she must adjust to a world that has changed dramatically in her absence. While learning to navigate the complex social dynamics of modern society, Mok-ha is determined to achieve her dream of becoming a singer - and she will stop at nothing to make it happen."

Wikipedia: https://en.wikipedia.org/wiki/Castaway_Diva
IMDB: https://www.imdb.com/title/tt28348835
AsianWiki: https://asianwiki.com/Castaway_Diva

This is the complete set of 12 episodes, each of which are between 67 and 80 minutes long. They all have edited "soft" English captions; that is, English subtitles are part of the MKV file and the subtitles can be enabled or disabled as you wish.

For episode 5 at the 1:05:00 mark, I used a linear video editor to pixelate the word "FUCK" spelled out with pistachio shells by a K-pop star.

I downloaded the source videos named like "Castaway.Diva.S01E01.1080p.NF.WEB-DL.DDP2.0.H.264-Archie [DRAMADAY.me].mkv" and obtained the best Netflix subtitles from user "TteokbokkiSubs" on subscene.com. Then I...
- Used Subtitle Edit (by Nikolaj Lynge Olsson) to find and fix all flagged issues
- Watched the series and italicized music lyrics, characters' thoughts, short flashbacks, and some off-screen dialogue; also color-coded some subtitles for clarity as appropriate, using yellow, teal, and salmon colors for signs, flashbacks, and written/printed material respectively
- Added 0.7 second to each subtitle (where possible) to allow more time to read them
- "Softened" all subtitled profanity (bastard --> jerk, damn --> darn, bitch --> witch etc.)
- Corrected commonly-found typos, also converting many word pairs into their common English contractions
- Used Handbrake to create new MKV files using my subtitles, trimming off the extremely-irritating Netflix logo from the start & end

Format: MKV
Format info: Audio Video Interleave
Total file sizes: 19.5 GB (20,939 MB)
Total duration: 14 hours, 52 minutes, 53 seconds
Overall bitrate: 3128 Kbps

Video format: MKV
Video Codec: H264 - MPEG-4 AVC (part 10) (avc1)
Video bitrate: 3000 Kbps (2-pass)
Video width: 1920 pixels
Video height: 872 pixels
Video frame rate: 23.976 fps
Video decoded format: Planar 4:2:0 YUV
Video scan type: Progressive

Audio format: MPEG AAC Audio (mp4a)
Audio language: Korean
Audio bitrate mode: Constant
Audio bitrate: 128 Kbps
Audio channel(s): 2
Audio sampling rate: 48 KHz 

Subtitles:  English as soft captions - feel free to rip & use or distribute as you wish