En una ciudad desconocida, en un edificio a través de las ventanas se puede ver el momento exacto en el que las cosas cambian. El antes comienza a ser el después y viceversa. Y nada vuelve a ser como antes. En este universo idéntico y diferente a la vez, se ve como los personajes cambian para siempre. In an unknown city, in a building through the windows you can see the exact moment when things change. The before begins to be the after and vice versa. And nothing goes back to the way it was before. In this identical and different universe at the same time, it is seen how the characters change forever.

It tells the story of orphans forced to work on a farm run by Colonel Juan Ignacio de Cabreras and Marga. Belén, through the book recommended to her by Tok and the Wise Old Man, meets Alejo, who lived with a boy named Felipe. One of the girls, Camila, secretly met with Felipe every night. But the colonel was interested in a cave containing very expensive diamonds, until finally, the diamonds belong to Belén. It's a story full of magic and song.