|The canonical point which your character is Being played:|
Having defeated the Voldermort with her two best friends, Hermione returned to Hogwarts to take her final year, finding herself positioned as Head Girl. The war hadn't changed her, she was as hard working as ever, but the year at Hogwarts away from Ron put a strain on their relationship, more so when she graduated and threw herself into an offered career within the Ministry.
When trouble started brewing once again, Hermione found herself unable to keep away from it. Helping people, saving them from whatever darkness was taking over, and when things didn't seem to be of the magical persuasion, her knowledge of things Muggle and Magical alike put her in a place others weren't.
Hermione's most prominent feature is her cleverness. Hermione is book smart and is very good with logic, as seen when she deciphers Snape's potion challenge at the end of Harry Potter and the Philosopher's Stone. Hermione does not do well at the beginning of the series in stressful situations, as seen when she does not think to use her wand when needing to create fire to get rid of the Devil's Snare. However, in Harry Potter and the Deathly Hallows, she can quickly think of a place to apparate to. She also thinks to reveal Harry to the Death Eaters to save Xenophilius Lovegood, and to use a stinging hex on Harry's face to hide his identity when attacked by Snatchers.
Hermione acts, at times, like the mother hen of the trio. She is very studious, and can be a bit bossy and fussy. She's the best student in her year and one of the best in the school, and is often teased and admired in equal measure for her "know-it-all" tendencies. Harry, Ron and especially Neville depend on her for academic help; and her knowledge, research skills, and common sense often prove invaluable in overcoming the trio's more serious challenges.
Hermione always goes the extra mile when completing homework assignments, handing in four feet of parchment when she was only asked for two, carrying out independent research and regularly reading ahead of the class. Upon her very first meeting with Harry and Ron, she announces to them that she's "learnt all our set books off by heart, of course, I just hope it will be enough."
This excessive studying and determination to be the best at everything often reflects Hermione's deep seated insecurity, a fear of failure that can give way to irrational panic and anxiety. Given that she receives top grades in all of her O.W.L. exams in her fifth year (except for Defence Against the Dark Arts, where she received the second-highest grade rank) this panic would appear to be misplaced.
Since the war, Hermione has gotten stronger within herself and feels the need to fight and save others, none more than her friends.
Image from wicked_visions
I do not know Hermione, or any of the HP characters. JKR does, I am just borrowing them for fun. Nor am I Miss Knightly, I am just borrowing her image because I think she is perfect as a older Hermione.