Nagi is characterized by her cold, calculating, and authoritarian nature. As the head of the Creatureland Group, she demands complete obedience and loyalty from the cafés under her control, punishing failure with ruthless efficiency. She frequently issues implied death threats to underperforming establishments, especially targeting the Oinky Doink Café due to its frequent missteps under Manager’s leadership. Nagi turns a blind eye to serious misconduct such as Kaoruko’s violent behavior toward her own maids as long as the café remains profitable, demonstrating that she values results over ethics.

Beneath her icy exterior, however, Nagi is revealed to be deeply miserable. Once part of a close knit sisterhood with Ranko Mannen and Michiyo, Nagi sacrificed that bond in her pursuit of power. Despite orchestrating Michiyo’s death and Ranko’s imprisonment, she secretly yearns for the connection they once shared. Her hunger for dominance, born from a traumatic childhood as an orphan, has left her emotionally hollow, a truth she refuses to acknowledge.

Despite her apparent hatred for Ranko, Nagi does not truly wish to kill her. In a moment of conflicted emotion, she offers Ranko a prestigious position within the Creatureland Group, promising wealth, status, and safety. However, the offer comes with a grim condition: Ranko must kill the members of the Oinky Doink Café to prove her loyalty. Ranko refuses, affirming her bond with both Nagi and Nagomi. In response, Nagi stabs Ranko’s hand and threatens Nagomi’s life, though she ultimately spares them allowing Oinky Doink to rejoin Creatureland under the condition of paying ten times their monthly sweets quota.

After Ranko’s death, Nagi spirals into madness. Isolated and emotionally shattered, she descends into a deeper level of cruelty, executing two of her most loyal executives for opposing her orders. She later murders General for speaking fondly of Ranko and suggesting reconciliation. Just before storming the Oinky Doink Café, she experiences a hallucination of a younger Ranko waiting inside, symbolizing her fractured psyche.

During Nagomi’s live performance at the café, Nagi is momentarily haunted by a memory of teaching Ranko how to dance during their youth, a flashback that evokes both nostalgia and anger. In a fit of rage, she kills the Lion Ace Maid of her own café, Dazzlion, simply for applauding Nagomi’s show. Finally consumed by her madness, Nagi shoots Nagomi multiple times, bringing her obsession with control and vengeance to a tragic climax.

Nagi is a tall and striking woman with distinctive pink eyes. She has long, flowing purple hair with a deep red hue on the underside, giving her a visually dramatic presence. Her outfit consists of a unique, old-fashioned purple maid-style dress, complemented by a pair of dark violet boots. Her appearance reflects both her commanding authority within the Creatureland Group and her ties to the traditional roots of Akihabara’s maid culture.

Nagi, whose real name was Uzuko, was an orphan during her childhood. General, a longtime acquaintance, noted that even as a child, her eyes seemed to hunger for something that would make her feel whole. She was taken in by Michiyo, the manager of a maid teahouse, who raised her with the intention of grooming her as a successor. However, with the arrival of Ranko Mannen, Michiyo shifted the café’s philosophy toward peaceful operations, a change that clashed with Nagi’s ambitions and belief in power through violence. Feeling betrayed, Nagi orchestrated Michiyo’s assassination and watched as Ranko was imprisoned, clearing the way for her to rise through the ranks and eventually become the head of the Creatureland Group. Her leadership is defined by unwavering loyalty to the group and a ruthless intolerance for disobedience.

In Episode 4, Nagi demonstrates her authority by executing the manager of the Kon Kon Café, a fox-themed establishment—for embezzling from Creatureland, using the incident to send a message to other managers. She then assigns Minori Sano to the Oinky Doink Café to enforce discipline, with the threat of death should she fail.

Throughout the series, Nagi’s past connection to Ranko is gradually revealed. The two were once close, forming a sisterly bond at the maid teahouse in 1985. Nagi was the getaway driver during Michiyo’s assassination and a key witness to the act she herself had arranged. Her relationship with Ranko was irreparably damaged by the betrayal and the choices that followed.

Nagi later targets Maid Sheep, one of the most profitable cafés under Creatureland, and eliminates it to punish Oinky Doink’s manager, denying her any opportunity to defend herself. She further isolates the café by refusing to intervene when the Maidalien Group declares war on them. In Episode 8, Nagi confronts Ranko again following a baseball match, accusing her of being responsible for Michiyo’s death due to her refusal to embrace violence. A private conversation between Nagi and her driver also hints that she had planned to have Kazue Ugaki killed if her own mascot hadn’t done it first.

In Episode 9, Nagi rigs the Lady Omoe Festival to ensure victory for her personally managed café, Dazzlion, by manipulating the competition’s rules. However, the Oinky Doink Café maids unintentionally defy the system, resulting in Dazzlion’s loss. Enraged, Nagi executes the Debt Collector on the spot for failing to control the outcome.

By Episode 10, it is revealed by Okachimachi that Nagi had orchestrated Michiyo’s assassination 15 years prior in her bid for power. She later hires Suehiro to eliminate Ranko but reacts coldly when he refuses the job.

In Episode 11, Nagi formally expels Oinky Doink Café from Creatureland following Nagomi’s unexpected victory in the Lady Omoe Climb. After increased pressure and harassment from Creatureland affiliates, Ranko and Nagomi personally visit Nagi to request reinstatement. Nagi offers Ranko a high-ranking position within the group but only if she agrees to kill Nagomi and the rest of the Oinky Doink maids. Ranko refuses, reaffirming her loyalty to her friends and her ideals.

In the series finale, following Ranko’s death, Nagi descends into deeper madness and vows to annihilate the remaining Oinky Doink maids. Her obsession with control drives her to kill General, who pleads with her to remember the sisterhood she once shared with Ranko. When Nagi arrives at the café, the staff greets her and her entourage as customers. During Nagomi’s performance, Nagi is overcome with emotion and memories of her past with Ranko. She mutters that Nagomi looks just like her former sister before opening fire in a violent outburst.

Her rampage is cut short when she is shot in the head by the Wuv-Wuv Moonbeam Maid, who is moved by Nagomi’s speech promoting peace and moe. Though briefly able to stand, Nagi is ultimately killed after being impaled through the chest by a sharpened bamboo spear thrown by Okachimachi.

Michiyo
Michiyo served as a maternal figure to Nagi, taking her in when she was an orphan and grooming her to become the successor of the Teahouse Café. Initially loyal to Michiyo, Nagi became disillusioned when Michiyo under the influence of Ranko Mannen’s pacifist ideals decided to shift the café’s policy away from violence. Feeling betrayed and displaced, Nagi orchestrated Michiyo’s assassination, effectively removing her from power and clearing the path for her own rise within the Creatureland Group.

Ranko Mannen
Nagi and Ranko Mannen were once sworn sisters during their time at the Teahouse Café, where they trained together under Michiyo’s leadership. Their bond fractured after Michiyo’s death, which Nagi blamed on Ranko’s nonviolent stance. Though Nagi publicly claimed to resent Ranko, it is later revealed that she herself arranged Michiyo’s murder. As Oinky Doink Café grows in influence, Nagi orders Ranko’s assassination, seeing her as a threat to Creatureland’s dominance. Despite their estrangement, Ranko continued to view Nagi as her sister until her death, a sentiment that ultimately haunts Nagi and contributes to her emotional unraveling.

Suehiro
Suehiro is a long-time hitman who worked under Nagi’s command. She orders him to assassinate Ranko when the Oinky Doink Café becomes a threat. However, Suehiro defies Nagi’s orders after developing feelings for Ranko, choosing not to carry out the hit. His betrayal further underscores the limits of Nagi’s control and foreshadows the unraveling of her influence within the organization.