Li Wei

Biodata

Feature	Details
Name	Li Wei (李维)
Alias(es)	Professor Li Wei; Master Li Wei
Species/Race	Wizard
Gender	Male
Affiliation	Hogwarts School of Witchcraft and Wizardry; formerly Slytherin House
Occupation/Role	Professor of Defense Against the Dark Arts; educator; magical researcher; alchemist
Status	Active
First Appearance	Chapter 1

Power Progression

Stage / Realm / Level	Chapter	Notes
Spells and Transfiguration, Stages One–Five	Before Ch. 2	Mastered the known spells and Transfiguration through the fifth stage, then combined both disciplines to devise new incantations.
Legendary Realm	77	Awakened after a two-month recovery and recognized a new means of using magic through both inward refinement and outward perception.
Legendary Creature Transformation	82	Learned that entering the Legendary Realm had granted him magic resistance, spell-less influence over the environment, and traits aligned with a Thunderbird.
Palm Lightning perfected	160	Completed a stable wandless version of Palm Lightning and refined its concealment, speed, and power; it is especially effective against conventional Dark Arts and cast curses.
Kirin Lightning Magic, first activation	166	Activated the previously theoretical large-scale technique during the battle in Egypt, devastating a pocket dimension and leaving behind a lightning-saturated battlefield.

Background

Li Wei enrolled at Hogwarts in 1982 and was sorted into Slytherin after the Sorting Hat considered both Slytherin and Hufflepuff. He remained deliberately unobtrusive as a student, earning eight Outstanding O.W.L. grades while dedicating most of his time to magical study rather than social life or status. His academic interest centered on treating magic as both a miracle and a system that could be analyzed, reconstructed, and taught. 2 5 163

By the end of his early adulthood, he had memorized the relevant knowledge in Hogwarts’ library and Restricted Section, mastered spells and Transfiguration through the fifth stage, and reached a personal bottleneck. Seeking perspectives unavailable through conventional magic, he turned to Dark Arts and Ancient Runes research. 2 35 36

After graduation, Li Wei rejected recruitment by both the Ministry of Magic and the Death Eaters. He lived among Muggles, practiced in seclusion, traveled to study foreign magical traditions, and sometimes took resources from dark wizards. Realizing that solitary study would limit him, he began selecting and training gifted students; Qiao Weili was his first disciple. 5 35

His return to Britain to research Dark Arts with a group of students brought him into conflict with Aurors and retired Auror Mad-Eye Moody. The Ministry subsequently considered him a dangerous dark wizard, but Dumbledore offered him an alternative to Azkaban: a supervised position teaching Defense Against the Dark Arts at Hogwarts, with a ban on researching the Three Unforgivable Curses. 1 3 36

At Hogwarts, Li Wei’s work as a professor gradually changed his formerly reclusive outlook. He became more invested in students, developed teaching materials and systems for the entire school, and began pursuing reforms that could make magical knowledge more accessible. 37 52 117

Appearance

Li Wei appears notably young for his age, particularly beside peers such as Snape, though McGonagall observes that he carries a more profound temperament than his appearance suggests. 6

• Black-and-blue irises. 289
• Maintains a composed, upright bearing even in tense negotiations. 3
• Prefers tailored, practical clothing; during his Egypt trip he wore a light-blue custom shirt, black riding trousers, and a dragon-hide belt. 160
• Wore Slytherin green robes with a green scarf during Christmas celebrations. 273

Personality

Li Wei is methodical, self-disciplined, and intensely ambitious. He approaches magic with an engineering-minded desire to identify its principles, test its limits, and turn theory into repeatable practice. He values knowledge not merely as something to possess, but as something that must be taught before it is truly understood. 2 5

His central ambition is immortality: he wishes to survive long enough to witness the development of eras, technology, and magic. Becoming a Legendary Wizard is therefore a means of self-preservation rather than his final objective. 5 100

Although initially detached from others and reluctant to accept obligations imposed by morality, Li Wei is not indifferent to suffering. He protects his students and assistants, helps Filch and Squibs pursue magic, and feels guilt toward the Obscurials who sacrificed themselves during his battle with the Seven Holy Descendants. 30 124 167

Dumbledore’s guidance gradually leads him to acknowledge the importance of emotions, personal bonds, and being moved by the world around him. He becomes more openly affectionate toward Qiao Weili and Jiamer and increasingly finds satisfaction in teaching, though he still dislikes excessive administrative workload. 37 43 225

Abilities & Skills

Magical Theory and Spellcasting

Li Wei treats magic as a field that can be broken into principles, structures, and stages rather than relying solely on imagination or inherited technique.

• Mastered a vast number of spells and Transfiguration methods, including all documented material through Transfiguration’s fifth stage. 2
• Developed the Five Stages of Spellcasting, emphasizing willpower and individual understanding rather than imitation. 117
• Can produce stable magical light with extremely small amounts of magic power, demonstrating exceptional control. 81
• Is capable of directly influencing surrounding magic and the physical environment without casting a conventional spell after reaching the Legendary Realm. 82

Legendary Creature Transformation

Upon becoming a Legendary Wizard, Li Wei developed characteristics associated with a Thunderbird.

• Possesses increasing magic resistance. 82 278
• Can affect the outside world through intent alone rather than requiring spoken spells or wand motions. 82
• Perceives emotional “qi” or magical fluctuations in others, distinct from Legilimency. 77
• Shows signs of progressing toward lightning elementalization, potentially allowing lightning-based movement and flight without Apparition’s usual limitations. 172

Lightning Magic

Lightning Magic is Li Wei’s personal magical path following his entry into the Legendary Realm.

• Palm Lightning — a highly stable, rapid lightning attack that can be cast with or without a wand. 160
• Its wand-assisted form exceeds the power of his ordinary spells when using equivalent magic power. 160
• Can cleanse or suppress conventional Dark Arts and curse-based spellcasting. 160
• Kirin Lightning Magic — a large-scale technique combining Forged by Fire, weather manipulation, Transfiguration, and natural lightning; its first use shattered a protected pocket dimension. 166
• Lightning Magic is powerful but initially difficult for Li Wei to control, particularly at large scale. 166

Combat and Defensive Magic

Li Wei is an accomplished duelist capable of confronting multiple skilled wizards at once.

• Defeated multiple Auror squads before his Hogwarts appointment. 11
• Can prevent Transfiguration from affecting objects within approximately one meter of himself. 107
• Defeated McGonagall and Flitwick in a two-on-one duel. 107 108
• Used scarlet dragon-scale protection, fiery sword-like rain, a Fire Phoenix, and rapid counters against Transfiguration and memory magic during that duel. 107 108
• His personal spell, Forged by Fire, manifests a Fire Phoenix and can be used as the foundation for larger fire- and weather-based techniques. 117 164 166

Mental and Linguistic Magic

Li Wei has studied magical communication and mental disciplines alongside combat magic.

• Learned Parseltongue and used it to confirm the Basilisk’s presence at Hogwarts. 23
• Used Legilimency on slain attackers in Egypt to uncover memories concerning the Seven Holy Descendants. 162
• Guards memories of his past life deeply enough that they are inaccessible even to Dumbledore. 91
• Mentors Jiamer in Legilimency and Occlumency, using his own memories as training material. 91 298

Alchemy and Magical Inventions

Li Wei is a prominent alchemist whose inventions focus on making magic more teachable and accessible.

• Created alchemical firearms that use magic matrices rather than bullets and can hold embedded spells. 8 124
• Added encryption and self-destruct mechanisms to alchemical pistols to protect their construction methods. 125
• Developed an alchemical method that enables Squibs to learn basic spellcasting through guided magical practice. 124 127
• Published “Intervention and Treatment of Squib Spellcasting Ability through Alchemy,” which confirmed the effectiveness of his Squib therapy and brought him international recognition. 127
• Created and improved the Study Guide / Manual, a magical book-like learning tool with house-specific versions and interactive functions. 91 117
• Helped establish magical signal base stations and the Department of Magical Transportation while retaining a hidden backdoor program as a safeguard against Ministry failure. 237

Teaching

Li Wei is regarded as an exceptionally effective but demanding professor.

• Combines students from different houses and teaches according to aptitude rather than house divisions. 4
• Breaks difficult material into manageable lessons, corrects mistakes promptly, and emphasizes foundational spells. 52 102
• Uses rigorous homework, memorization, practical combat, and structured study schedules. 11 52
• Rewards capability and effort regardless of house, as shown by Cedric Diggory’s appointment as a Study Committee Member. 11
• Designed systems such as the Duelling Tower, task bulletin boards, internships, and house-spanning cooperative training. 119 243 253

Equipment / Weapons / Items

• Wand — used for conventional spellcasting, Transfiguration, and enhanced Lightning Magic. 160
• Alchemical pistols — matrix-based magical firearms capable of carrying embedded spells; Li Wei later introduced encryption and self-destruct measures. 8 125
• Study Guide / Manual — a magical instructional book refined into a presentable, house-specific learning tool. 91
• Untraceable Extension Charm luggage — secured with a silver snake-shaped clasp and capable of holding Barton. 6
• Ravenclaw’s Diadem — acquired through a deal with Helena Ravenclaw, then donated to Hogwarts as a reward for exceptional theoretical or practical achievement. 82 125

Relationships

• Albus Dumbledore — Former teacher and eventual ally. Dumbledore initially considered him a dangerous Dark wizard, then recruited him to Hogwarts and became a mentor in Li Wei’s journey toward the Legendary Realm. 1 3 34 82
• Minerva McGonagall — Former Transfiguration professor, longtime correspondent, and close scholarly friend. She advocated against imprisoning him and became one of his strongest supporters at Hogwarts. 2 6 243
• Qiao Weili — Li Wei’s first disciple and assistant. Li Wei chose him for his exceptional magical talent and trained him after discovering him had been auctioned because of that talent. 3 35
• Jiamer — Disciple and assistant carrying a mysterious curse marked by a black crescent on her wrist. She is fiercely protective of Li Wei, with her feelings for him implied to be deeper than ordinary loyalty. 3 212
• Severus Snape — Former school acquaintance and frequent critic. Their relationship begins in hostility, but Snape becomes increasingly affected by Li Wei’s magical understanding and eventually cooperates with his plans. 8 81 307
• Helena Ravenclaw — Li Wei negotiated with Helena for the location of Ravenclaw’s Diadem, agreeing to arrange punishment for the Bloody Baron in return. Their conversations reveal mutual respect for magical theory and the founders’ wisdom. 82 86 92
• Argus Filch — Li Wei helped Filch pursue basic spellcasting through an alchemical aid, understanding his desire to use magic despite his status as a Squib. 30 92
• Remus Lupin — Li Wei entrusted Lupin with teaching the first batch of Squib students and personally taught him how to produce alchemical pistols. 160 172
• Harry Potter — Student who respects Li Wei’s knowledge and magical ability. Their disagreements over the Basilisk reflect Li Wei’s cautious strategy against Harry’s urgency. 20 23
• Cedric Diggory — Student whose intelligence, composure, and magical ability earn Li Wei’s recognition and responsibility. 11 148
• Horace Slughorn — Former Potions professor and persistent admirer who repeatedly tried to recruit Li Wei into the Slug Club. After Li Wei’s public rise, Slughorn becomes one of his most enthusiastic supporters. 282 284

Story Role / Major Arcs

Dark Arts Investigation and Hogwarts Appointment

Li Wei begins as the leader of a group of students researching Dark Arts, attracting Ministry suspicion and an attempted intervention by Aurors and Dumbledore. Rather than send him to Azkaban, Dumbledore appoints him Hogwarts’ Defense Against the Dark Arts professor under strict restrictions. 1 3 4

Reforming Defense Against the Dark Arts

At Hogwarts, Li Wei restructures Defense Against the Dark Arts through mixed-house instruction, intense practical training, textbooks, study schedules, and demanding assignments. His approach rapidly improves student performance while making him both admired and feared by students. 4 11 52 69

Chamber of Secrets Crisis

Li Wei identifies the likelihood of a Basilisk, learns Parseltongue to confirm its presence, and informs Dumbledore while suspecting that a hidden figure is orchestrating the attacks. His handling of the crisis contributes to his changing relationship with students and the staff. 19 23 34

Ascension to the Legendary Realm

After confronting the limits of isolated study and reconsidering Dumbledore’s advice on emotion and connection, Li Wei awakens from petrification and enters the Legendary Realm. He develops Thunderbird-like traits, magic resistance, and the foundations of Lightning Magic. 37 77 82

Educational and Alchemical Reform

Li Wei creates the Study Guide, donates Ravenclaw’s Diadem as a student incentive, develops alchemical tools for Squib spellcasting, and helps establish systems that extend magical education beyond Hogwarts. His work earns global attention and official recognition from the Ministry and Alchemy Association. 91 125 127 148

Egypt and the Seven Holy Descendants

While visiting Egypt for an Alchemy Association honor, Li Wei is attacked and uncovers the Seven Holy Descendants’ involvement with Obscurials. His battle with Caleb Nott and the organization forces the first destructive activation of Kirin Lightning Magic and leaves him burdened by a magical debt to the Obscurials who protect him. 162 164 166 167

Magical Network and Hogwarts Expansion

Li Wei expands his influence through Duelling Tower construction, student internship systems, the Manual, magical signal base stations, and the planned Department of Magical Transportation. These projects increasingly challenge the established pure-blood monopoly on magical knowledge. 237 243 253 284

Notable Quotes

“The students of Hogwarts stand on the shoulders of legends.”
— Li Wei 289

“I plan to promote this device so that all Squibs can gain the ability to cast spells.”
— Li Wei 124

Trivia

• The Sorting Hat considered placing Li Wei in Hufflepuff before deciding that his ambition made him better suited to Slytherin. 5
• He earned an Outstanding grade in Muggle Studies and draws heavily from Chinese Muggle educational methods in his teaching philosophy. 4
• Li Wei dislikes public acclaim and considers his work with Squibs more valuable than receiving the Order of Merlin. 148
• He does not pursue the Deathly Hallows despite knowing they are real, preferring personal magical development over reliance on legendary artifacts. 310