A character which has been a victim to practically every pre-teen novel.
It doesn’t matter what their parents their other personality, hobbies, backstory or motives are, whether or not book reading correlates with their character, it’s part of them.
Basically; Book-readers are characters in books where book reading is a personality trait, when it’s not.
‘Book-reader’: “ugh, your so annoying, maybe read a book. Books are interesting.”
Reader: “cringe”