Below is a breakdown of what each part of that string means:
The phrase you provided is a specific file name typically used on file-sharing sites to describe a digital copy of the South Korean TV series
: Likely a suffix used by those specific groups for their website branding. Where to Watch Officially
: This file contains two audio tracks that you can switch between—the original Korean audio and a Hindi dubbed version.
: Refers to the first season of the popular Netflix psychological thriller about a woman seeking meticulous revenge against her childhood bullies.