- "Same...same sixth Floor Guardian Mare Bello Fiore, at your command."
- — Mare's Introduction
Mare Bello Fiore (マーレ・ベロ・フィオーレ) is a dark elf and one of the twin Floor Guardians on the 6th Floor of the Great Tomb of Nazarick. Mare is the twin brother of Aura Bella Fiora. Alongside his sister, he was created by Bukubukuchagama.
Mare is a child with dark skin and pointed ears, a signature trait of the dark elves. He has golden hair and heterochromia, his right eye is blue and his left eye is green.
He wears a blue dragon scale leather full-body suit, covered by a white and gold vest embroidered with the sigil of Ainz Ooal Gown and a forest green-leaf cloak. Below, he has a matching short white skirt exposing his thighs, and on his neck is an acorn necklace emitting silver light. His slender hands are donned with shiny white silk gloves and he wields a twisted black wooden staff.
People outside of Nazarick always mistake him for a girl, due to how he looks appearance-wise and the clothing he mainly wears.
Mare has a shy and cowardly personality, the kind which is a polar opposite to his sister, Aura. He often stutters when speaking and maintains a subservient demeanor during conversations. This, however, is only an outward guise and does not affect his loyalty to Ainz or his ability to carry out his duties, no matter how cold-blooded they may be. Mare likes to sleep all day and is fond of reading books from Nazarick's library, Ashurbanipal, instead of talking with others.
Unlike his sister who has an interest in collecting beast species, Mare takes an interest in collecting plant species.
Mare was created to be the brother of Aura by Bukubukuchagama. The reason why Mare is so submissive to Aura stems from his creator, who apparently believed that the younger brother should obey the elder sister. (Gag between Peroroncino and Bukubukuchagama).
The Undead King Arc
- Main article: The Undead King Arc
After Momonga teleports to the 6th Floor and enters the Amphitheater, Aura notices and jumps down from the Colosseum, greeting him respectfully. Aura then calls for Mare to also pay his respects, but when he takes too long, she gets angry and begins scolding him, stopping only when Momonga tells her to forgive him.
Wondering why Momonga has come to his floor, Mare was shocked to hear that he is performing experiments with his staff. When Momonga asks Aura if she wants to fight his summoned Primal Fire Elemental, she enthusiastically charges in while Mare tries to make an excuse, but is dragged with her in the progress.
Once the other Floor Guardians arrive at the Amphitheater, he later joins them in a formal salutation towards Momonga. Together, they collectively pay their respects and admire the powerful presence their master has.
The Emissary of the King Arc
- Main article: The Emissary of the King Arc
Mare is shown sleeping when a messenger from Ainz comes to the 6th Floor. Having been awoken by Aura, he quickly gets out of bed to greet the Death Knight who has already been shown in by his sister. Upon hearing the undead's questions from their master, Mare, like his sister, is confused, but nonetheless believes Ainz has a reason. On their interpersonal relationships, Aura answers for Mare, stating he is a bookworm and hardly goes out. She berates him to make friends, to which Mare meekly agrees. He is recommended by Aura to start with the librarian, Titus Annaeus Secundus, since they have similar interests. On the topic of their desires, Mare wants some plant monsters to raise to protect the floor, as opposed to Aura wanting a new magical beast.
The Bloody Valkyrie Arc
- Main article: The Bloody Valkyrie Arc
Ainz orders Mare and Albedo to eliminate Kralgra to keep the affair a secret. Mare uses his spell on the forest so that no one can escape. He immobilizes Igvarge and kills him by crushing the man's skull with his staff.
As Ainz proceeds to engage Shalltear in a death battle, Mare and Aura have been ordered to monitor the area. Having been given legendary items, the two are given the additional order of withdrawing if the enemies appear. After Ainz returns to Nazarick, Mare and the other Floor Guardians beg him to never get in harm's way again and to allow them to handle any future incidents that may come from now on.
The Show Must Go On!
- Main article: The Show Must Go On! Arc
Mare and Aura are seen together working in the Great Forest of Tob. Mare is confused as to what they are doing, to which his sister explains that she is building a second Great Tomb of Nazarick. Upon hearing her response, he becomes uncomfortable and is afraid that his sister is planning to secede with Nazarick. Aura denies his claim, but before she can explain, Ainz arrives through a Gate. To his relief, the structure that Aura is building is a decoy base. At a meeting with Ainz and the Floor Guardians, Ainz begins to plan for implementing a fringe benefit system. Mare requests to create a sea on the 6th Floor.
The Sealed Evil Tree Arc
- Main article: The Sealed Evil Tree Arc
The Lizard Man Heroes Arc
- Main article: The Lizard Man Heroes Arc
Mare and the other Floor Guardians appear next to Ainz when he addresses the lizardmen. Additionally, in a meeting that is taking place in Nazarick, he and his sister become emotional with the rest of their fellow Floor Guardians while Ainz forgives Shalltear for her betrayal. As his master is consoling the vampire, Mare and Aura are already shedding tears. After the meeting is over and Ainz leaves, Mare speculates with the Floor Guardians that maybe their master set Cocytus' expedition up to fail from the very beginning.
The Search for Hamsuke Arc
- Main article: The Search for Hamsuke Arc
Mare is conscripted by his sister Aura to find Hamsuke, who has gotten lost somewhere on the 1st Floor of Nazarick. Mare and his sister track the hamster to the 2nd Floor and are soon joined by Albedo and Shalltear. The four find Hamsuke, however, none of the female Floor Guardians want to approach the beast, as much to their horror, Hamsuke has a cockroach on her head. The other three push Mare to use his staff to crush the bug in response, but Mare is unsure and afraid of killing Hamsuke. The antics of the Guardians cause Hamsuke to flee in terror after being threatened with death if she came any closer.
The Two Leaders Arc
- Main article: The Two Leaders Arc
Mare is given a secret message from Demiurge's servant, Pulcinella. He reads the message and sees that it is an invitation from Ainz to all the male Floor Guardians to join him for a bath. After seeing this, Mare understands that he needs to pass it onto Cocytus. To keep the content a secret from the female Floor Guardians, Mare lies to Aura about the reason why he needs to go to the 5th Floor. Mare heads out to search for Cocytus, only to find that he isn't in Nazarick, but at the lizardmen's village.
Due to the incident with Shalltear, Floor Guardians are forbidden to independently leave Nazarick without Ainz's permission, unless they take more than five level 75 servants along with them. If Mare mobilizes his high-level servants, Aura will definitely notice. As such, he ends up heading to the Grand Library of Nazarick in order to borrow high-level bodyguards from Titus. After reaching the lizardmen's village, Mare meets Shasuryu Shasha, who tells him that Cocytus isn't in the village, as he had gone out to subjugate the toadmen in the northern part of the lake.
Finishing up his task, Mare returns to Nazarick and hands the invitation back to Ainz. The two exchange words when Ainz ends up by expressing his love for the NPCs. Suddenly, Albedo becomes unable to control her emotions and attempts to rape Ainz. Mare and several Eight-Edge Assassins restrain Albedo and his master punishes her to three days of solitary confinement in Frozen Prison. Mare joins Ainz, Cocytus, and Demiurge in the Spa Resort before the interruption of the female guardians, who are attacked by the Lion Golem.
The Dark Hero's Story Arc
- Main article: The Dark Hero's Story Arc
Mare and his sister attend a meeting with the rest of the Floor Guardians to decide on what kind of rewards they wish to receive from Ainz. In this meeting, he scolds Aura for trying to take Rororo as a pet without the lizardmen's permission under Cocytus's domain, which he believes is deemed unacceptable.
When Albedo suggests that they should keep the price low in regards to the coupon that lets the person sleep with Ainz, he points out the fault of doing so as being disrespectful to Ainz.
While listening to Demiurge's suggestions, he makes a recommendation that they should take a piece of paper and write the bidding amount on the coupon, and reveal it together. Demiurge likes Mare's idea and is willing to use it twice first in the auction.
Ainz Raises Money Arc
- Main article: Ainz Raises Money Arc
Mare is present with his fellow Floor Guardians at a meeting with their master Ainz Ooal Gown. During the meeting, when Ainz inquires about Mare's reward, his answer is that he wants the same sleeping voucher-like Shalltear suggested before.
Like the others, he is given three gold coins to be used as his salary by Ainz. In the next meeting, Mare presents his liege a pendant that was made out of those gold coins.
During another meeting with Ainz, Mare presents and tells his master that he also bought a wooden Momon statue like his sister Aura did, except his is the Bloody Version.
Table Game to Understand Humans Arc
- Main article: Table Game to Understand Humans Arc
The Men in the Kingdom Arc
- Main article: The Men in the Kingdom Arc
During Operation Gehenna, Mare is paired with Entoma along with a force of summoned monsters. Together, they infiltrate Hilma's mansion and easily take care of the guests and security before Mare finds Hilma attempting to escape by using an underground passage. He effortlessly subdues her and later drags her back to Nazarick for interrogation.
The Invaders of the Large Tomb Arc
- Main article: The Invaders of the Large Tomb Arc
After Foresight has been systematically defeated, Ainz then orders Aura to take both Hekkeran Termite and Imina to Gashokukochuuou. However, Aura manages to convince her master to give the task to Mare instead.
The Magic Caster of Destroy Arc
- Main article: The Magic Caster of Destroy Arc
Mare serves as Ainz Ooal Gown's attendant at the Imperial Army's base camp at Katze Plains. He applauds his master's success in summoning five Dark Young, whilst watching them slaughter the Royal Army.
The Ruler of Conspiracy Arc
- Main article: The Ruler of Conspiracy Arc
Mare and his sister visit Ainz. He has been tasked with building an underground tomb on the outskirts of E-Rantel. While this is happening, the three elves that had been spared during the Invasion of the Large Tomb are attempting to act as parental surrogates to Mare and his sister. Ainz hopes that they can help with Mare's and his sister's development as fellow dark elves.
At the same time, both the two dark elves are picked up by Ainz, placed on each lap, and coddled in fatherly affection. Under Ainz's order, however, Mare gets off of his master's lap and lets Albedo take his spot instead.
Additionally, Mare, alongside his sister, decide to make a suggestion to Ainz that boys should wear girls' clothes, and girls should wear boys' clothes. However, the suggestion is struck down by Ainz when he convinces everyone in the room that the two dark elves are dressed that way because their creator wanted them to be special.
The Craftsman of Dwarf Arc
- Main article: The Craftsman of Dwarf Arc
Nazarick Mythology Arc
- Main article: Nazarick Mythology Arc
Mare and his sister Aura attend a meeting to create a mythology of their master in order to solidify his hold over the masses. In the twins' myth story, they weave a classic super sentai story where a group known as "The Ainz Five" fight monsters to save the world until they decide to eradicate the human race. The humans attempt to resist, but the Ainz Five transform into a giant golem, wiping out humanity in a never-ending cycle.
The Witch of the Falling Kingdom Arc
- Main article: The Witch of the Falling Kingdom Arc
In the Audience Room Mare was present with the other Floor Guardians. There he quietly stands by and watches Shalltear bring Hilma Cygnaeus over to his master Ainz as a witness who can explain their questions about the attack on the Sorcerer Kingdom's trade caravan of grains. Every Floor Guardian including Mare during the meeting, approved of the punishment Ainz has suggested for Hilma Cygnaeus to do. Once that matter was concluded, discussion about Philip resumes where it left off while the Overseer explains their strategy for the Fall of the Re-Estize Kingdom.
When Ainz states that maybe Philip did what he did without thinking about the consequences of his actions first, Albedo doubts the nobleman to be this stupid. However, as Demiurge shows his support to Ainz's notion, Mare and his sister also agreed with their master's forethought.
As Demiurge inquires further from the Floor Guardians on what punishment they should imposed on Philip, Mare agreed with her sister's idea of having to killing the nobleman for what he did to their caravan.
- Mare's name is Italian, with "mare" meaning "sea," "Bello" meaning "beautiful," and "Fiore" meaning "flower."
- In the Web Novel, Mare Bello Fiore doesn't exist.
- Mare is the first NPC to be given the Ring of Ainz Ooal Gown from Ainz. He wears the ring on his left hand, ring finger.
- (To Aura): "I, I would rather not have to meet intruders...they, they're scary..."
- (To Momonga): "A, a very gentle person."
- (To Demiurge about the way he dresses): "This was Bukubukuchagama-sama's decision. She said this was called a 'trap', so it should have nothing to do with my gender."
- (To the Floor Guardians): "Y-yes, about that, I always felt that something was off. At the start, why were those weak undead assigned. Th-that...c-can't say for certain, maybe Ainz-sama set this expedition up to fail from the very beginning..."
- (To Ainz): "I-I apologize. But, I really thought Ainz-sama was cool. Even when you were sitting down, it was a movement truly befitting the Supreme Overlord of Nazarick."
- (To the Floor Guardians and other NPCs about Ainz): "Then, then. M-may I try? Erm...because Ainz-sama is very kind, it might be good to let people know that. Then, then, m-maybe we could try, the Merciful King?"
- (To Ainz about Aura and his creator): "Never! I'll never let anyone but Nee-chan have Bukubukuchagama-sama's specialness!"