Well, 'A Day Before Us' comic has several attractions. The characters are well-developed, the plot is full of twists and turns, and the themes it explores are thought-provoking.
You could check out platforms such as MangaFox or MangaStream. But keep in mind that the availability of the specific manga might vary. Also, make sure to use legal and authorized sources for a better reading experience.
The first chapter usually sets the stage, introducing the main characters and the initial plotline. It might give you a taste of the overall theme and style of the manhwa.
I'm not sure specifically what 'resumen secret story' refers to without more context. It could be about a secret story in general, perhaps a summary of a mystery or a hidden tale.
One common element is a spooky location like an old house, a cemetery or an abandoned building. These places are often associated with the unknown and death.