Hermione

Biodata

Feature	Details
Name	Hermione Granger (赫敏) 13
Alias(es)	Professor Hermione 335
Species/Race	Witch; the only magical member of the Granger family 25
Gender	Female
Affiliation	Hogwarts School of Witchcraft and Wizardry; Gryffindor House 24
Occupation/Role	Magical-circuit and Memory Magic researcher; later a professor of Care of Magical Creatures 469 335
First Appearance	Platform Nine and Three-Quarters 13

Power Progression

Stage / Realm / Level	Chapter	Notes
Magical-spell perception	109	Detects that Luke's Patronus Charm carries magical characteristics similar to his Incendio but unlike spells such as Accio and Levitation.
Mathematical spell analysis	111	Identifies a calculable pattern in Luke's casting method and begins modeling spellcasting through mathematics.
Modified Obliviate	147	Alters magical-energy paths and mental guidance so sealed memories can re-emerge under particular stimuli rather than being erased permanently.
Memory Magic formula research	234	Detects Memory Magic fluctuations around Lockhart and approaches a complete formula analysis of Obliviate.
Ravenclaw-guided “true Memory Magic”	428 469	Gains Ravenclaw as a research mentor after engaging with the Room of Requirement's founder-related secret.
Magical-circuit publication	469	Completes and submits “Specialization and Fixation Research on the Effects of Magical Circuits,” drawing major attention in the research community.
Memory Magic combat system	555	Develops Memory Magic into a combat system; her magical power remains comparatively limited despite the system's potential.

Background / History

Hermione is raised by Mr. and Mrs. Granger and is the only wizard in her family. Her parents initially believe her Hogwarts letter may be a prank. 13 25

At King's Cross, Hermione quickly deduces that Luke Gaunt is another first-year from his age, luggage, and old-fashioned clothes. After he guides the Grangers through the barrier to Platform Nine and Three-Quarters, she returns to say goodbye to her father and entrusts Luke with her luggage. 13

On the Hogwarts Express, Hermione seeks Luke's guidance on spells, school life, and the House system. Her concern is not being able to match wizard-raised students academically, while her enthusiasm for mathematics and grammar immediately sets her apart from ordinary Muggle children. 14

Luke advises her that Slytherin would not suit her at that time. The Sorting Hat later places Hermione in Gryffindor. 15 24

Appearance

Hermione initially has a noticeably messy appearance, including wild hair and prominent front teeth. By her second journey to Hogwarts, she has deliberately refined her presentation. 147 230

• Her formerly unruly hair is neatly styled. 230
• Her prominent front teeth are shortened, making her smile more attractive. 230
• She wears clothing closer to a Muggle school uniform beneath a modern young-wizard robe, with knee-high socks and brown boots. 230

Personality

Hermione is intensely curious, studious, and self-aware. She worries about falling behind students raised in the wizarding world, but she also recognizes where effort cannot substitute for aptitude; after deciding she lacks talent for flying, she chooses to simply meet the course requirement rather than obsess over it. 14 116

She approaches magic through logic rather than instinct. Her refusal to accept unexplained gaps in spell power drives her toward mathematical analysis, magical circuits, and Memory Magic. 111 147 490

Her devotion can become unhealthy. During one summer, she works herself to exhaustion in the Room of Requirement because she refuses to slow Luke's expanding plans or disappoint those who trust her research. 469

Abilities & Skills

Magical Perception

Hermione can distinguish differences in the nature and flow of magic that others fail to notice.

• She senses that Luke's Patronus Charm resembles his Incendio in a way it does not resemble Accio or Levitation. 109
• She detects Memory Magic fluctuations around Gilderoy Lockhart, including signs beyond ordinary Legilimency and Occlumency. 234
• Her perception becomes the foundation of her Memory Magic research. 109 147

Spell Formula and Magical-Circuit Research

Hermione applies mathematics to the structure, energy flow, and reproducibility of spells.

• She concludes that Luke's casting method can be analyzed through calculation. 111
• She continues this work during the summer, describing her work to her mother as “calculating magic.” 190
• Rather than attempting to merge all science and magic into one theory, she narrows her research to structuring and reorganizing spells mathematically. 490
• Her magical-circuit paper, “Specialization and Fixation Research on the Effects of Magical Circuits,” is submitted after preliminary completion and provokes broad interest among magical researchers. 469

Modified Memory Magic

Hermione's first documented spell modification is a controlled variation of Obliviate.

• The spell seals memories without fully destroying them; specific stimuli can later cause the memories to resurface. 147
• She achieves the alteration by changing several routes of magical-energy flow and adding mental guidance. 147
• She can reproduce the modified spell deliberately rather than relying on an accidental casting error. 147
• Her work eventually earns Ravenclaw's guidance in understanding true Memory Magic. 428 469

Academic Spellwork

Hermione is a capable student whose persistence is more prominent than effortless talent.

• She makes partial progress in first-year Transfiguration, earning Gryffindor three points despite falling short of Luke's result. 45
• She successfully levitates a feather in Charms and earns five points for Gryffindor. 95
• Her Fire-Making Spell improves through Luke's method, though she acknowledges it remains weaker than both Luke's casting and traditional casting methods. 111

Creature Handling

Hermione can remain decisive when dealing with dangerous magical creatures.

• She researches Dementor behavior and explains practical information about their threat to other students. 335
• She forcibly restrains a Dementor and stuffs it back into its box without using a Patronus Charm. 335

Equipment / Research Materials

• Wand — used to cast her reproducible modified Obliviate. 147
• Formula drafts and parchment — extensive handwritten calculations used for magical-circuit research in the Room of Requirement. 469
• Memory Magic research — developed through her own spell experiments, Luke's instruction, and Ravenclaw's guidance. 147 469

Relationships

• Luke Gaunt — Friend, confidant, and the person whose spellcasting inspires much of her research. She trusts him with her discoveries, worries intensely during his disappearance, and is determined not to fall behind his plans. 14 147 425 469
• Taylor Barbara — Close friend and research companion. Taylor comforts Hermione after her Transfiguration struggles, and the two later discuss spell-calculation theory together. 45 111
• Harry Potter — Gryffindor peer. Hermione is asked to keep watch over him and Ron, and she urges them to seek professors rather than recklessly confront the Giant Squid. 84 286
• Ron Weasley — Gryffindor peer whom Hermione regards as a frequent source of trouble, though she still monitors him at Luke's request. 84
• Professor Minerva McGonagall — Teacher and protector. McGonagall respects Hermione's dedication, brings her food during her research, and urges her to rest. 22 469
• Rowena Ravenclaw — Mentor in advanced magical research. Ravenclaw guides Hermione's work and praises her unconventional learning method and progress. 469
• Mr. and Mrs. Granger — Her supportive Muggle parents. Hermione remains connected to them and discusses her magical mathematics research with her mother. 13 190

Story Role / Major Arcs

Arrival at Hogwarts

Hermione enters the magical world with little practical knowledge but quickly forms a connection with Luke. She joins him in helping Neville Longbottom search for Trevor, then becomes a Gryffindor despite her intellectual affinity with Ravenclaw. 14 15 24

First-Year Friendships and Study

Hermione befriends Taylor after Luke introduces them and begins establishing herself academically. Although Luke's Transfiguration talent overwhelms her, she accepts the gap and remains determined to improve. 42 45

Discovery of Memory Magic

After sensing unusual differences in Luke's spellcasting, Hermione begins investigating magic as a structured system. Her modified Obliviate becomes proof that controlled alterations to spell-energy paths can produce repeatable new effects. 109 111 147

Founder Legacy Research

Hermione accompanies Luke into the secrets beneath the Black Lake and later enters the Room of Requirement with him to confront its founder-related entity. Her curiosity and respect toward the unknown help position her as Ravenclaw's successor and student. 287 428 469

Magical-Circuit Research

Hermione spends her summer relentlessly developing magical-circuit theory while Ravenclaw guides her work. Her completed research paper establishes her as a significant figure in the study of spell structures. 469

Later Teaching Role

By the time of the Dementor incident, Hermione is addressed as a professor and is associated with Hogwarts' Care of Magical Creatures teaching. Her forceful containment of a Dementor earns the students' respect. 335

Notable Quotes

“I'm calculating magic!” 190

“I can't hold Luke back. His plan has already accelerated.” 469

Trivia

• Hermione's Boggart takes the form of Professor Snape in women's clothing; she finds it embarrassing rather than frightening. 338
• She considers Luke's access to the Restricted Section enviable, but Luke believes the knowledge she presently needs can be taught more safely outside it. 242