It's a manhwa with a female lead ... she gets k*lled by someone she trusted? And he took her heart I think
and then she's given a second chance by some amulet she was wearing and gets booted back to like a few years prior
I believe she also has a friend who lives in the sea
and what I think was the ML was sort of timid and came through the fence or something to visit her
I for the life of me cannot remember the name of this series.
the art in this is GORGEOUS