
Lmaoo that's a mistranslation...
Soo the woman who is crying (Isla) is a winter spirit, and she made the country that FL is visiting for business, frozen, out of rage to this entire country's royalty bloodline and thanks to that FL become unable to go home.
Why did Isla get mad? She thought that her best friend, Mars, was killed by the princess of the country while she was having a baby from another man.
Then other spirits (spring summer autum) noticed that the FL is able to see them so they asked the FL to talk to Isla to stop the winter.
Many things happened and and FL met a girl ghost that claimed to the princess. The princess begged FL to explain the truth and gave the diary to Isla, explaining that actually the child and the entire royalty bloodline right now is mars' child, not another man's. And that the princess didn't kill Mars, but mars did it himself to protect the princess and the baby since the emperor and empress that time mandated the princess to kill the baby.
So all this time Isla was mad to Mars' bloodline. She was sad and missed Mars so much. FL understand that and showed her the illusion of Mars.
I hope you can understand my rough explanation

Noo, mars baby become the crown prince. They lived, but people and Isla didn't know it was Mars' child. That's why Isla made the country always in a winter state.
The FL mother and the ring is another matter. The blonde man is the Duke, supposedly, the FL's real father. The FL current father is not his real father, her mother remarried before she died, she brought her and Ravi to their current house's. The ring was something that her real father gave to her mother, and what her mother gave to her.
I’m kinda lost with the story now. Can someone explain to me? I’m confused about the mars story, who’s that woman and how is FL the daughter of mars and the blonde hair woman?