Lu

Biodata

Background / History

Life Before Big Tree Village

Lu was a well-known mage who studied numerous subjects and learned most kinds of magic. Both friends and enemies called her the Vampire Princess, though with very different intentions. Her longstanding rivalry with the angel Tia became famous enough that outsiders regarded them as eternal rivals 3 5.

After causing trouble in a town, Lu received a bounty and fled from Tia. Nobody had died in the incident, but she had damaged a noble’s pride. Lu later acknowledged that Tia held an advantage over her in terms of combat compatibility 3.

Meeting Hiraku

In the Forest of Death, Lu was cornered by Infernal Wolves and Demon Spiders. Repeated injuries depleted the magical power composing her body, reducing her to a small child’s appearance and leaving her close to destruction. Hiraku intervened, but the wolves attacked again when she instinctively drank his blood. Once he understood that she needed blood to recover, he willingly offered more 3.

Hiraku welcomed Lu into his home and proposed to her despite her warning that she was a vampire. She accepted him as her husband and helped harvest root vegetables, initially protesting at the unexpected turn toward farming but adapting within a few days. She also began teaching him magical theory 3.

When Tia arrived in pursuit, Lu apologized for their earlier dispute, and the two agreed not to fight there. Their shared experience of being overwhelmed by Hiraku’s wolves helped soften their hostility. Lu then pushed for Tia to join the household because she found Hiraku’s sexual demands exhausting 3.

Village Life and Motherhood

Lu became the representative of the settlement’s vampires and participated in the meeting to name Big Tree Village. She also handled visitors: during the first Howlin Village delegation’s arrival, she adopted her adult form, delivered a formal welcome, and challenged the presence of concealed party members. Her suspicion partly reflected an unfamiliarity with Howlin Village’s lack of a gift-giving custom 4.

Lu gave birth safely to Hiraku’s eldest son, Alfred, and chose his name. Neither parent initially knew how his mixed human and vampire ancestry would manifest. Hiraku noticed that Lu’s personality seemed gentler after childbirth, and she subsequently helped Tia through her own pregnancy 5.

As Alfred grew old enough to recognize people, Lu increasingly maintained her adult appearance during the day so the children would remember a consistent face. Although attentive to childcare, she admitted that she still needed Ann and the others’ help 20.

Appearance

Lu can freely alternate between a childlike and adult body; her apparent age does not reliably indicate her actual age or strength 3 10.

• Usual early appearance: A middle-school-aged girl during the day, changing into an adult at night 3 7.
• Injury-induced regression: Severe damage forcibly makes her younger and smaller; during her first encounter with Hiraku, she was reduced to approximately a five- or six-year-old’s appearance 3.
• Clothing: Can create clothes from magical power, but prefers Zabuton’s clothing for its superior quality 3.
• Later presentation: Spends more daytime hours in adult form for the children’s benefit 20.

Personality

Lu begins as a proud mage who dislikes admitting weakness. Being helpless against the village’s wolves makes her more willing to acknowledge her limits, including Tia’s favorable matchup against her. Her competitiveness remains visible when she insists that she can match others’ magic or flight abilities 3 7.

She is affectionate toward Hiraku and protective of their family. Although she admits wanting him to herself, she accepts additional wives and actively encourages others to share the relationship. Her usual tolerance has exceptions: she covers Hiraku’s eyes while Flora’s recovering body grows back to its normal size 3 4.

Lu can switch from domestic informality to a forceful public manner. She scrutinizes visiting delegations, advises on threats to the village, and bluntly challenges Hiraku when she thinks he is overcomplicating a decision. At home, she is less orderly: Ann criticizes her habit of leaving frequently used belongings nearby instead of putting them away 4 8 10 27.

Abilities & Skills

Magical Versatility

An established mage before meeting Hiraku, Lu can use most kinds of magic and explain their underlying principles 3.

• Elemental combat: Exchanges fire, water, and wind spells with Tia without chanting 10.
• Lighting: Can create a light before nightfall that remains bright until dawn; unlike firelight, it does not attract insects 3.
• Fire and cleaning: Lights fires magically and states that she can perform cleaning magic comparable to Tia’s 3.
• Defense: Casts a defensive spell alongside Tia when a wyvern attacks the village 4.
• Instruction: Teaches Hiraku magical theory, but concludes that he lacks practical talent; even a small flame would require years of study 3.

Blood Absorption and Recovery

Vampires extract magical power from blood. Lu uses that power to restore her strength, heal wounds, and regain her normal body size 3.

• Drinking Hiraku’s blood rapidly heals her injuries and reverses her weakened appearance 3.
• Feeding does not turn the donor into a vampire or undead 3.
• Blood-drinking normally carries a charming effect, but it does not work on Hiraku 3.
• She also eats ordinary food; blood is not her sole source of nourishment 3.
• After marrying Hiraku, she says she will not drink anyone else’s blood 10.

Body Alteration and Shapeshifting

Lu’s childlike body conserves power, while her adult body allows her to use her full strength. Damage can force her into the smaller form regardless of her wishes 10.

• Mist form: Useful for entering locked rooms, but exhausting, offensively useless, and leaves her defenseless at the instant she changes back 10.
• Animal forms: Primarily infiltration techniques; they do not make her stronger than her human form 10.
• Other racial features: Can produce horns, tails, and beast ears, and take forms resembling lamias, centaurs, and minotaurs 23.
• Limits of transformation: Altering appearance does not alter her “essence.” Her other forms remain recognizably Lu, and a male transformation retains feminine qualities 23.

Enchantment

Lu can use magic that controls others, but it works only on very weak targets 10.

• She considers attempting it against knight-division tournament competitors a waste of energy 10.

Flight

Lu can fly without wings, although she initially describes herself as poor at it 3.

• Uses flight during her aerial battle with Tia 10.
• Has repeatedly become caught in Zabuton’s threads 3.

Healing and Medicine

Lu studies pharmacology alongside magic and provides medical assistance to villagers 7 10.

• Uses healing magic more frequently as tournament-inspired training increases injuries 10.
• Helps treat the injured hot-spring expedition members 15.
• Identifies a newly arrived settler’s non-life-threatening condition and recommends prompt treatment 21.
• Is called upon with Flora when the twin angels return injured from aerial patrols 22.

Scholarship and Magical Research

Lu researches magic tools and helps interpret unfamiliar magical systems 23 26 27.

• Ancient terminology: Summarizes Sun Castle’s old contract when Hiraku cannot understand its wording 26.
• Technological assessment: Estimates that leading contemporary magical researchers might need roughly 150 years merely to understand Sun Castle’s advanced technology 27.
• Research preferences: Declines to join that proposed effort, explaining that research with an endpoint already in sight holds little interest for her without a strong personal thirst for knowledge 27.
• Practical development: Helps Zabuton and the Mountain Elves complete a successful small hot-air-balloon prototype 27.
• Communication: Receives a remote message from the Progenitor and relays it to the village meeting 20.

Martial Arts Tournaments

Other Major Contributions

• Preventing an attack on the village: Suggests using allied lamias from outside Big Tree Village to stop the army being assembled around the Demon King’s daughter. She undertakes to inform Hiraku while Frau arranges the response 8.
• Festival planning: Serves as an adviser rather than a principal organizer because childcare occupies her time 9.
• Village One settlement: Requests a reward that will make Hiraku happy after medicine work connected to Fushu. The resulting offer brings ten newly married couples to Village One 20.
• Settler oversight: Presides over a gathering of the new settlers in Hiraku’s absence, with the village’s wolves and spiders also present 21.
• Sun Castle’s incorporation: Argues against Hiraku’s excessive concerns about accepting the castle and supports taking it into the village network 27.
• Village festival: Wins a quiz category, then later gathers Hiraku for a nighttime conversation with Tia, Ria, Ann, and Sena 29.

Relationships

• Hiraku Machio — Husband and the person who saved her life. His acceptance of her vampire nature is central to her decision to marry him; she later assists him with village affairs and magical knowledge 3 7 26.
• Alfred — Her first child and Hiraku’s eldest son. She names him, cares for him, and adjusts her daytime appearance to avoid confusing him 5 20.
• Tia — Former pursuer and famous rival, later a fellow wife and close companion. Their fierce competition survives in tournaments, but Lu also supports Tia during pregnancy 3 5 10 15.
• Flora Sakuto — Younger cousin, despite their use of “big sister” and “younger sister.” Flora comes searching for her after she fails to return home 4.
• The Progenitor — Grandfather. He visits after hearing of Alfred’s birth and admonishes Lu about her lifestyle during the tournament; Hiraku later suspects that she finds him difficult to deal with 9 10 15.
• Ann — One of the oni maids formerly employed by Lu and Flora. Helps with childcare, criticizes Lu’s untidiness, and fights her in the knight division 7 10 20.
• Kuro and the Infernal Wolves — Initially nearly destroy her, then accept her once Hiraku does. Their shared fondness for tomatoes helps them grow close 3.
• Zabuton — Initially terrifies Lu, who faints on seeing her and her children. Lu later values her clothing and collaborates with her on the balloon prototype 3 27.

Trivia

• Lu particularly likes tomatoes 3.
• Losing a chess match against Kuro leaves her dejected for about three days 3.
• In the next-volume preview chat, she complains about her limited page time and is dismayed to hear that Zabuton and Kuro also count among the work’s heroines 6.