1. This volume collects two stories, "Le Cahier Bleu", and "Après La Pluie". Two major characters from the first story feature at the beginning of the second. Their relationship appeared doomed at the end of the first story, but they are a couple again (with no explanation) at the start of the second. They turn out to be minor characters in the second story. This confused me at first, as it lead me to expect a sequel. In fact, the two plots are independent.
2. It might add some depth to read up on "Tristan et Yseult" first. (I still need to do that, in fact.)
But it's stuffed with strange and memorable ideas and images--ancient Egyptian gods playing monopoly in a space-ship/pyramid hanging over a dystopian future Paris, chess-boxing, and on and on.
The built-in tuner is basic but handy. The aux in and headphone out are convenient for practicing, too.
This story is a complete self-contained story, as are each of the following volumes.
It feels like there's not a wasted word or panel.