This is the 2023-2024 Korean romance/fantasy/historical/mystery TV drama series, native title "열녀 박씨 계약 결혼뎐," also known as "The Tale of the Contract Marriage of the Yeolnyeo Park Clan," "Park's Contract Marriage Story," "The Tale of Park Yeon Woo," "Lady Virtue's Contract Marriage," and "The Virtuous Woman Park Got Married by Contract."

From MyDramaList: https://mydramalist.com/747725-park-s-contract-marriage-story
"In the 19th century, on the night of her wedding day, Park Yeon-woo's husband died after revealing that he had suffered from a heart condition for a long time. She is devastated, but before she can even mourn her husband, a man kidnaps her and throws her in a well. The moment she opened her eyes, she saw her husband before her. Transcending time, space, and death, she is now in present-day Seoul, South Korea, and the man who saves her from the swimming pool is Kang Tae-ha, who looks a lot like her dead husband from the 19th century. Tae-ha is the successor of SH Seoul Corporation. He does not like opening himself up to others due to his heart disease and the trauma that he endured in his childhood. He prioritizes logic over emotions and is uninterested in having a romantic relationship, but his ill grandfather tells him that he wishes to see his wedding before he dies. To make his grandfather's wish come true, Tae-ha asks Yeon-woo to enter into a contract marriage with him."

IMDB: https://www.imdb.com/title/tt26679485
Wikipedia: https://en.wikipedia.org/wiki/The_Story_of_Park's_Marriage_Contract
AsianWiki: https://asianwiki.com/The_Story_Of_Park%27s_Marriage_Contract

This is the complete set of 12 episodes, each of which are just over an hour long (between 64 and 73 minutes). 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.

I downloaded the source videos named like "The.Story.of.Park's.Marriage.Contract.S01E01.1080p.H264.AAC.VIU.WEB-DL-LoveBug [DRAMADAY.me].mkv" and obtained the VIU English subtitles from subscene.com, user Coffee_Prison. 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 and adjusted words/minute to at least 280
- "Softened" all subtitled profanity (bastard --> jerk, damn --> darn, bitch --> witch etc.)
- Corrected commonly-found typos, converted many word pairs into common English contractions, brought together sentence fragments, and removed unnecessary translated words like "oh" and "ah", etc.
- Converted Korean names to AP style (family name followed by hyphenated given name)
- Used Handbrake to create new MKV files using my subtitles

Format: MKV
Format info: Audio Video Interleave
Total file sizes: 15.6 GB (16,787 MB)
Total duration: 13 hours, 38 minutes, 30 seconds
Overall bitrate: 2728 Kbps

Video format: MKV
Video Codec: H264 - MPEG-4 AVC (part 10) (avc1)
Video bitrate: 2600 Kbps (2-pass)
Video width: 1920 pixels
Video height: 960 pixels
Video frame rate: 29.970 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