かがみの孤城

A somewhat slow slice of life fantasy story about school problems.

As others have said, the language in this book is easy to understand. The kanji used are also pretty straightforward. As for the story, some of the situations made me feel actual anger, worry or happiness, so there's that. People have said the ending is amazing and unexpected. I don't know about that. Without spoiling anything, I must say that I guessed almost all the plot twists around page 150, so the ending was... , well... , as I expected it would be. It's a good book, though.