Daphne

Biodata

Feature	Details
Name	Daphne Greengrass (达芙妮)
Gender	Female
Species/Race	Witch
Affiliation	Slytherin House; Hogwarts School of Witchcraft and Wizardry
Occupation/Role	Hogwarts student; Su Yu’s close companion and caretaker
First Appearance	Chapter 4

Power Progression

Stage / Realm / Level	Chapter	Notes
Ancient: Magic Mirror	64	Awakens an Ancient Magic ability that reflects incoming magic and attacks back at their source. She later uses it to shield the Slytherin formation during the battle against Ranrok’s forces. 64 98

Background / History

Daphne first introduces herself to Su Yu after the opening feast, warning him that the Slytherin prefects may retaliate against him and promising to seek a professor if they do. 4

Following Su Yu’s confrontation with Dumbledore, she stands with the gathered Slytherins as they recognize him as their leader. From then on, she frequently accompanies him through classes, helps organize his routine, and quietly manages the chaos surrounding him and the Nine-Tailed Fox. 7

Over time, Daphne becomes one of Su Yu’s closest companions. Their relationship is openly affectionate, though she remains practical enough to correct his behavior, look after his health, and maintain order within their social circle. 30 31 108

Appearance

Daphne is a poised young witch with long golden hair, usually dressed in elegant, carefully chosen clothing. Her appearance and manner reflect the social polish expected of the Greengrass family. 7 30 108

• Long golden hair, often worn loose over her shoulders. 7 30
• Frequently wears tailored Slytherin-green robes at Hogwarts. 7
• Wore a simple cream-colored dress when returning for her third year. 30
• Presented herself in an elegant white outfit during her first visit to Foley Manor. 108

Personality

Daphne is gentle, composed, and attentive. She consistently offers practical support rather than demanding attention, whether that means taking notes, preparing food, helping classmates, or comforting someone in distress. 7 10 12

She is also disciplined and capable of sternness. She restrains Su Yu when he is about to act recklessly, drags Astoria away when her sister becomes too disruptive, and intervenes to keep the Nine-Tailed Fox clean and out of trouble. 8 33 251

Although most people see her as obedient and virtuous, Su Yu considers her more calculating than she appears; he credits her with teaching Kalis and Astoria some of their more scheming behavior. 105

Abilities & Skills

Ancient: Magic Mirror

Daphne’s Ancient Magic manifests as a reflective defense capable of returning hostile magic and attacks.

• Reflects incoming magical attacks back at their source. 64
• Used as battlefield protection for Slytherin’s coordinated formation. 98
• Its effectiveness is limited against enemies without magical power, such as the War Gods. 255

Potion-Making

Daphne is a skilled Potions student and one of the few first-years to avoid Snape’s criticism during the burn-healing potion lesson. 10

• Successfully brews alongside Su Yu, guiding him step by step. 10
• Reads Introduction to Potion Brewing in her free time. 15
• Assists in reviving Kalis after a Potions-cauldron explosion. 128

Spellcasting Instruction

Daphne is able to train others in practical spellcasting.

• Taught Hermione to cast spells rapidly during the Dueling Club exercise. 40
• Helped Hermione improve the stability and speed of her spellcasting. 40

Herbology and Domestic Skills

Daphne is knowledgeable about magical plants and consistently takes responsibility for food and care within Su Yu’s group.

• Identifies plants and edible berries during Herbology. 7
• Correctly answers Professor Sprout’s questions about Mandrakes. 31
• Takes control of cooking when the group’s attempt at dinner becomes chaotic. 150
• Makes sweets and homemade toffee, and continues learning confectionery. 144

Thestral Sight

Daphne can see Thestrals and directs a carriage pulled by them upon returning to Hogwarts. 60

Relationships

• Su Yu — Close companion and romantic partner. Daphne supports his studies, health, meals, training, and daily life, while also openly correcting him when necessary. 7 8 10 30 31
• Astoria Greengrass — Younger sister. Daphne is affectionate and protective, but disciplines Astoria firmly when she causes trouble. 30 33
• Hermione Granger — Friend and academic companion. Daphne comforts Hermione during emotional crises, studies with her, and trains her in rapid spellcasting. 12 40 64
• Nine-Tailed Fox — Trusted caretaker. The fox sleeps on Daphne’s lap, seeks her help when dirty or upset, and is regularly fed and cleaned by her. 11 154 248
• Slytherin students — A respected senior presence within Su Yu’s group. She supports the House’s younger members, including warming first-years during a storm. 125
• Sister Ka and Sister Fa — Companions within Su Yu’s household and social circle. Daphne shares domestic activities, fashion discussions, and group outings with them. 67 108

Story Role / Major Arcs

First Year

Daphne becomes Su Yu’s first steady Slytherin ally, accompanying him in class, helping him navigate Herbology and Potions, and recording notes when he sleeps through History of Magic. 4 7 10

She prevents Su Yu from using Reducto out of frustration during Transfiguration, then comforts him until the lesson ends. 8

During the Black Lake outing, she sings while Su Yu sleeps on her lap and becomes a trusted resting place for the Nine-Tailed Fox. 11

Slytherin Training Period

As Su Yu remakes Slytherin into a combat-oriented group, Daphne remains a stabilizing presence. She massages his shoulders while he supervises training and continues to manage his everyday habits. 13

She helps Hermione develop rapid spellcasting during the Dueling Club. 40

Ancient Magic Awakening

Daphne awakens Ancient: Magic Mirror, gaining the ability to reflect hostile spells and attacks. 64

She later uses this power as part of Slytherin’s coordinated defense against Ranrok’s forces. 98

Later Journeys

Daphne remains a core member of Su Yu’s traveling group, acting as its most reliable cook, caretaker, and organizer during expeditions through the secret realm and the Ailao Mountains. 150 251

She also assists in supporting Harry’s defense-training initiative and helps care for the Nine-Tailed Fox throughout the group’s travels. 248 250

Trivia

• Daphne’s younger sister is Astoria Greengrass. 30
• She belongs to one of the Sacred Twenty-Eight pure-blood families. 108
• Snape considers her Potions work competent enough that she avoids his criticism during her first lesson. 10
• Su Yu considers her outwardly gentle image misleading, believing she is far more scheming than most people realize. 105