can someone give me a summary of this?

Just read everything.
Without spoilers:
Is about a girl who transmigrated to a fantasy world as the king’s daughter. In her previous life she was a girl with I think cancer and died young. In this new life she got a deadline, she is gonna die at 21 but she is healthy which is nice. And that’s the story.

In my opinion at the moment looks good, but I believe it’s one of those that are going to have at least 200 chapters.

Thank you! I guess I'll give this one a shot