Majiri Agakura

Majiri Agakura is the eldest sister of the Agakura Clan, possessing an extraordinarily dangerous repute in Japan, Earth. In the Other World she was Riddhe "Godhead Restorer" Malacougar, a vampire with a repute as a legendary martial artist.

Appearance
Majiri is a young woman with straight black hair that nearly reaches her waist in the back and slightly exceeds shoulder length in the front; her hair is adorned with an ornament and her ears with two large hoop earrings. She wears a short sleeved sailor-themed uninform of dark hue, the left sleeve of which sports an armband displaying the title "Head of the Family" in kanji.

Her large, light-hued umbrella features a black splash-design over a grey circle; in the middle of the splash is the white outline of what may be an eye.

Personality
Although Momoya Agakura has remarked Majiri cannot ever focus on a single person for very long, she appears to be possessive of her family and extends that possessive streak toward those who catch her interest by inviting them to join the Agakura Family as adoptees; not only does she extend this invitation to Xiaoyu Lei when de-limbing him, she renews the offer upon their reunion nearly a decade later. She furthermore uses endearing language when addressing or referring to Xiaoyu and Momoya, such as "sweet little kidsassin-kun", "silly little brother," and calling them both 'cute' and 'adorable'; by constantly referring to her status as sister and Momoya as her brother, she invokes and reinforces their family bonds.

Her threats of punishing Momoya are similarly reinforcements of and reinforced by the family bonds she holds in such high esteem. Her disarming smiles, meanwhile, are threatening in and of themselves; they belie the confidence, authority, and dangerous skill she wields with pride.

Other World
Over hundred years ago, when Majiri was Riddhe Malacougar, her older sister Silk Malacougar was one of many vampires belonging to a certain country's aristocracy. These vampire aristocrats dabbled in assassination for supplemental income until the country's ruling powers ordered them into exile, after which Silk and her peers became full-time assassins to make ends meet.

In circumstances that have yet to be understood, a group of unknown individuals 'abused' Silk and framed her for deeds she did not commit "in order to impose succession" on Riddhe. Riddhe retaliated by extirpating the country's vampire population, pursuing Silk's absolution via their kind's unilateral slaughter. The necromancer Easlies Swordfrail would intercept Riddhe in the immediate aftermath of one such massacre at a vampire castle; with Easlies was her apprentice Corpse God, who she passed off to Riddhe as a younger brother rather than her heir.

Earth
Riddhe leaves Silk behind when she somehow makes her way to Earth, where she adopts a new identity as Majiri Agakura and comes to have numerous younger siblings of her own, including Dalhia, Kana, Momoya, and Yumeji Agakura. In them, Majiri instills that which she knows best: a deeply entrenched commitment to family, and the capacity to kill. The Agakuras develop a fearsome reputation as hired killers in Japan.

Almost a decade prior to the start of the series, Majiri, Kana, and Momoya Agakura together slaughter a small-time group of terrorists that have been causing trouble for more than one organization—including the Lei Family, a young assassin of which by the name of Xiaoyu Lei arrives at the same building with orders to slaughter everyone inside.
 * Xiaoyu Lei Encounter

Majiri is impressed when Xiaoyu ruthlessly attempts to cut her throat and encourages him to let the Agakuras adopt him. He is unreceptive. With Xiaoyu's obvious Heilei membership in mind, Majiri non-fatally severs Xiaoyu's arms and legs with the expectation that Xiaoyu's family will condemn him to be a t'ing fu. She promises to return Xiaoyu's limbs once Xiaoyu agrees to be adopted, and tells him her name before she and her siblings depart.

Ten Years Later
About two days after the Shinoyama estate arson incident, around the time Tsubaki Iwanome and Kōzaburō Arase are leaving a curry restaurant, someone on Shinjuku's streets mentions having heard that Majiri will be arriving in Tokyo soon. The speaker's identity is unknown, as is the specific context for Majiri's travels.

Roughly a week later, Majiri, Dahlia, and Kana murder at least two people in a sheltered parking lot. Majiri afterward fails to reach Momoya by phone and decides to go looking for him, sensing through supernatural means that he is somewhere in Shinjuku's east side. The sisters track Momoya down to a warehouse surrounded by singing Fire-breathing Bugs; the Bugs scatter at Majiri's demand, allowing the sisters to enter the building unchallenged.

Inside the warehouse are four people: Takumi Kuruya, mildly injured; Misaki Sakimiya; Momoya, passed out from terrible injuries; and, unexpectedly, Xiaoyu Lei. Majiri severs Xiaoyu's prosthetic right arm at the elbow by way of delighted greeting and reminds Xiaoyu of what he must do to have his limbs returned; Xiaoyu affirms his allegiance to the Shinoyama Clan over both the Agakuras and the Heilei, then attempts to kick her with his right leg.

She crushes his offending knee with prejudice targeted at the Shinoyamas, who have dared to interfere with her chance to recruit Xiaoyu. Momoya wakes up only to laugh at her, risking punishment, before warning Majiri that Misaki, not Xiaoyu, inflicted his wounds. Misaki swings her prybar at Majiri, who catches it with her teeth and swipes her hand at Misaki's torso—which dissolves into a flock of bats, a vampiric trick. Recovering from her shock, Majiri tosses the prybar to Misaki, demands Misaki's name, and then invites Misaki to amend it with the name of Agakura.

The life-threatening nature of Momoya's injuries becomes clear when Momoya coughs up blood; at Majiri's signal, Kana gathers Momoya into her arms while Dahlia prevents Misaki from interfering. Deeming the encounter a draw, Majiri apologizes for breaking Xiaoyu's prosthetic, reminds Xiaoyu again of her conditions for returning his real limbs, and tells Misaki she will be seeing her again. She and her sisters leave to seek medical treatment for Momoya.

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 * Post-warehouse

Trivia

 * Majiri's given name is first mentioned in Chapter 24, twenty-six chapters before her debut.