What happened?

Hae-Ran is a lovely, smart, and full of life girl. One day, she plunged into a ditch from a mountain. After being pushed into a ditch, nobody survives.

When Hae-Ran falls in, his entire world turns upside down. She reached another world.

She fell in love with Kang Min Ho, a charming, wealthy, and caring man, in another world. Min Ho adores her as well.

Will the two distinct worlds flourish?

What caused her to fall from the mountain?

How did Hae-Ran manage to escape after everyone else perished after falling from the mountain?

Is there a link between her birthmark and the other reality?

Did she discover her father's identity?