I was new to manhwa's and reading Noblesse & TOG . When I caught upto translation when I saw W : Two Worlds Trailer in which MC comes from manhwa world and it drew me in.
i started the red sleeve but never finished it. but my first was I think she was pretty (also didn't finish) the first one I finished was love in the moonlight in 2022
I *think* it would have been either The Empress Ki or Moon Embracing the Sun on Netflix but I can't remember which I watched first (I doubt I'm the only one to start watching c- or k-dramas during lockdown. After watching a few c-dramas I began to get a taste for historical/ political ones and thoroughly enjoyed both these titles).