for that first part I got this sample:
https://www.mangago.me/read-manga/sengoku_komachi_kurou_tan/
(sorry its manga idk any manhwa like that (T^T); mc gets transported back in time and uses her smart from modern time to her advantage. this one has little to no romance as far as I can remember tho but its a fun read)
quick update: reread this( haven't read this in years) and there is a character in the very later chapters that is very weird
quick update: reread this( haven't read this in years) and there is a character in the very later chapters that is a fucking weirdo so quick warning sign/psa
( ＴДＴ)
Oh how I wish there was a manhwa where the FL is another being from a different universe but somehow ended up in a historical manhwa setting, shes a badass character, slow burn romance maybe..?,
Another thing I'd wish to see is a mermaid manhwa where the fl saves the ml from almost drowning at sea and they dont fall inlove right away, he becomes friends with her, or a mermaid manhwa where the fl is some kind of merprincess or god and she lost her younger sibling and is in search of them on land.
Honestly i have no idea who would get what im trying to say, I wish i was creative enough to write my own stories