This South Korean drama, released in 2023, has 12 episodes and is available on Netflix.
The story is based on the concept of reincarnation, where the female lead remembers everything from her 19 past lives.
This is one of my favorite dramas. The way she(female lead) is patient with him(male lead), she always waited for the right time to tell who she was to him and always waited for him. Its different because it has no freshness, she has attitude and always made it clear that she is completely in love with him, the way she is so in love with him is beautiful.