Nagi Kirima (霧間 凪, Kirima Nagi), also known as Walpurgis (ヴァルプルギス, Barupurugizu), is the deuteragonist of the Boogiepop Series, as well as the protagonist of the Repent Walpurgis Series. Known and feared around her school as the dangerous Fire Witch, she is the daughter of the famous and enigmatic writer Seiichi Kirima, the non-blood-related sister of Masaki Taniguchi, a member of the Towa Organization, and a friend of Naoko Kamikishiro and Kazuko Suema.


Infamous around school for her delinquent behavior, Nagi is an aggressive and brutish individual, unconcerned with any of the Academy's regulations. The teachers cannot find ways to admonish the girl, as she always gets top test scores, and no matter how much she skips school, always knows the subjects taught perfectly. Her threatening demeanor, however, is in fact just a ruse, in order to keep average people away from her. According to herself, after witnessing her father's death, Nagi developed a serious messiah complex, always wanting to "save the day". Her intense wish to become a savior has led her to always get involved any time an enemy of the world rises up. Because of this, Nagi kept running into Boogiepop and, as the two have the same goals, they developed a collaborative relationship, although Nagi doesn't seem to hold him in very high regard. She has a relatively good relationship with her brother Masaki, caring after him and doing her best to keep him out of any trouble. Her only friend for most of her time at Shinyo Academy was Naoko Kamikishiro, who she really cared for, starting her hunt for the Manticore because Naoko asked her to help Echoes. Later, however, she also developed a friendship with Kazuko Suema because of the girl's constant insistance.


NagiKirima design

Nagi is a tall and imposing young girl with long brown hair and brown eyes. While at school she wears the Shinyo Academy white female sailor uniform, but while on her missions, she wears a black leather skin-tight suit, black gloves and black combat boots.

In the anime, Nagi has shorter, shoulder-length black hair, and is seen wearing the Shinyo Academy school uniform, consisting of a blue blazer worn over a white shirt with a red tie around the collar, and a pale blue short skirt, as well as her black skin-tight suit, black fingerless gloves and black combat boots.


Nagi was the daughter of Seiichi Kirima, a famous writer, who she idolized a lot, so much so that she admitted to Kazuko that she had a father complex. When she was really young, she wittnessed her father die in front of her when she returned home. The man suffered a gastric perforation which, according to Nagi, was a terrible way to die. Her mother remarried with Masaki Taniguchi's family, wanting nothing to do with the deceased Seiichi, but Nagi kept her previous surname as a sign of respect for the man. Afterwards, she started her clandestine activities of defeating any threatening individuals that she encounters. During the serial killer incident, Nagi met Boogiepop for the first time, while trying to find a way to eliminate the murderer.


Boogiepop and Others

Boogiepop Phantom

Boogiepop Returns VS Imaginator Part 1

Boogiepop Returns Vs Imaginator Part 2

Boogiepop in the Mirror

Boogiepop Overdrive

Boogiepop at Dawn

Boogiepop Missing

Boogiepop Embryo

Boogiepop Paradox

Boogiepop Unbalance

Boogiepop Stacatto

Boogiepop Bounding

Boogiepop Intolerance

Boogiepop Question

Boogiepop Darkly

Boogiepop Unknown

Boogiepop Within

Boogiepop Changeling

Boogiepop Antithese

Boogiepop Doubtful

Boogiepop Beautiful


  • Nagi's last name, Kirima, is written with the characters for "mist" and "space".
  • Nagi's first name means "lull".