OK imagine Cho Chang was introduced in 2nd book, Hermione is petrified Penelope clearwater is Cho's only friend, so after her Cho being a Brainier Ravenclaw helps Harry and Ron solve the mystery of chamber of secrets... also her Grand father plays a secret role and Cho shares a special bond with Hagrid...well read the story and lemme kno how is it my first ever also i m no writer.