The Miracle

Fraternal twins Si-yeon and Si-ah couldn't be more different; one never wants to leave her room while the other is a big K-pop star.

A new semester begins, but Si-yeon is already counting down the days to the end; Si-ah shoots a commercial with her not-so-collaborative partner.

On the first day of living each other's lives, Si-ah runs into a group of schoolmates and Si-yeon messes up on stage.

Si-ah's singing ability tops the list of search keywords on the internet, but she's not thrilled about it; Si-ah gets a surprising text message.