It actually follows the volumes of the light novel. Each volume is about another phase in her life. This one follows (after a little bit more happens)what happens at the end of the first season of the anime. My guess is they started with this one seeing as the next season will probably reach this part and most likely pass it.
It actually follows the volumes of the light novel. Each volume is about another phase in her life. This one follows (after a little bit more happens)what happens at the end of the first season of the anime. My guess is they started with this one seeing as the next season will probably reach this part and most likely pass it.