I recently watched a Korean sci-fi series based on time travel - Sisyphus, The Myth (or Sijipeuseu: The Myth as titled in IMDB) that has one character being sen

I recently watched a Korean sci-fi series based on time travel - Sisyphus, The Myth (or Sijipeuseu: The Myth as titled in IMDB) that has one character being sent back in time and proceeds to deliberately amass power and wealth. They have a police/military force whose job is to locate and hunt down time travellers from the future as they can be so disruptive to the economy etc and there's lots of people wanting to travel back from the future due to it being a dystopia.