Rumi Usagiyama

Rumi Usagiyama (ルミ), also known as Rabbit Hero: Mirko (ラビットヒーロー ミルコ), is the No. 5 Pro Hero.

Appearance
Rumi has an athletic yet curveacous figure with muscular arms and legs, and stands at a slightly below average height. Rumi has dark skin, red eyes which are tilted slightly inwards, long eyelashes, and straight white hair that used to reach down past her waist, but was later cut short.

On her head, she has a pair of long white rabbit ears pointing upwards with a slight crook. Along with these, she also has a white round tail, which gives her overall design a definite resemblance to an albino rabbit.

Her hero costume consists of a sleeveless white leotard with dark purple trim around her shoulders and waist, a wide yellow crescent moon design over her chest, and a single thick metal plate wrapped around her midriff.

She wears purple thigh-high boots to compliment her leotard, with more plating around the heel and toe areas, making her feet look like those of a rabbit. She also has a pair of thick, white gloves on her hands with long cuffs, sporting small triangular protrusions around their edges.

During the Jaku General Hospital raid, her left forearm was crushed and her right shin was stabbed by a High-End Nomu, while the tip of her right ear got sliced off. In the aftermath of the War, she now possesses a prosthetic left forearm and right leg, which are interchangeable in case they get destroyed. During the Final War, her right forearm is bitten off by a mouth on Tomura Shigaraki's arm growth.

Personality
Rumi is tough and always speaks her mind, even if it causes confrontation, and she respects those who do the same. Rumi seems to believe that heroes who join teams are cowards, as they could just be relying on their teammates' strength rather than their own. As a hero, she proves to be very fearless and independent, freely traversing Japan while bravely facing any villain she comes across.

Despite her brash demeanor, Rumi isn't above assisting others as she came to the aid of Endeavor and Hawks after seeing their battle with Hood on the news. She also requested Endeavor's help while fighting a villain on one occasion, showing that she isn't unwilling to ask for help from other heroes despite her solo disposition.

She also assisted the team assigned to take down Tomura Shigaraki in the Final War, where her overzealous and brash personality combatted with someone who shared similar traits, Katsuki Bakugo, leading to the two arguing on the battlefield.

Rumi embraces life-threatening situations with a bright grin and is constantly searching for the next big adrenaline kick, smiling in the face of danger. She does not back down, even when she is overpowered by stronger enemies, claiming to only be getting warmed up. Rumi also appears to take every day of her life with no regrets, admitting she'd risk her life for the greater good. Her great devotion and bravery even earned her the respect of Endeavor, who vowed to finish Rumi's work and defeat the villains in her stead when the Rabbit Hero was left unable to fight.

Rumi is capable of enduring extreme pain without losing focus and faces her own wounds reluctantly. She is pragmatic and quick thinking, as she was able to bind off her bloodstream with her own thick hair, to keep fighting without her arm. Both times she had lost her arms were unable to halt her rampage, able to improvise and keep up her assault.

When she was in middle school, she was known to be a hooligan, constantly starting trouble by infiltrating fight clubs and joining in the fights, to the point of being expelled from her school. This continued into her high school days where her attraction to fighting arenas led her to the Underground Masquerade. Here she was able to establish her prowess as a future Pro Hero, with her desire not to sit on the sides and finish a fight all the way through, gaining the respect of O'Clock. She also refused to take any compensation for her actions, intending to make it big all on her own in the future.

Abilities
Overall Abilities: As the No. 5 Pro Hero, Rumi is more powerful than most other Pro Heroes. Her hearing capability is outstanding, as she was even able to locate her target through minimal noise. She was also shown to be capable of multitasking, as she simultaneously attacks, dodges, and concludes information about the enemies.

During the early stages of the Paranormal Liberation War, Rumi fought against several High-End Nomu unaided for an extended period of time, incapacitating a few, and decapitating one. Though once the Nomu were fully stabilized, she was easily overpowered, and fully expected to die before deciding to take the Doctor down with her.

Later while fighting in the Final War against the villains, Rumi was selected to join the Hero team to assist Izuku Midoriya in the battle against "Tomura Shigaraki", despite the handicaps she suffered in her battle with the Nomu, a further testament to her might as a hero. While Izuku's arrival was delayed, she single-handedly managed to hold back the enhanced villain, in a rage-fuelled rampage, her blows were strong enough to make the villain stagger. Though once "Tomura" evolved into his final defense form, she was quickly cast aside with a single blow.
 * Enhanced Strength: Rumi has proved to possess incredible physical strength, being able to easily defeat several Nomus and to break down the huge metal gate that kept Kyudai Garaki's secret laboratory. Remarkably, she was able to momentarily incapacitate some of the High-End Nomu and sever one of their heads. However, after they started to stabilize, she was quickly overwhelmed by them to the point that she was prepared to die and decided to finish off Doctor Garaki to take him with her. Later her strength proved capable enough to force back the rapidly evolving "Tomura", though she was quickly defeated once "Tomura" progressed to his final defense form.
 * Enhanced Speed: In conjunction with her level of physical strength, Rumi possesses an equally impressive amount of speed. Her speed allowed her to reach Kyudai's laboratory in just a few minutes, being barely slowed by the Nomus that tried to stop her. She was also fast enough to keep up with the High-End Nomu, but once they began to stabilize, Rumi was unable to land any more blows on the High-Ends. Later her speed was shown to be enough to outpace "Tomura" in battle, but her speed quickly proved inadequate to outpace his final form.
 * Enhanced Dexterity: Rumi has shown to possess incredible control over her limbs and body, as seen when she fights multiple High-Ends.
 * Enhanced Agility: Rumi has shown to have incredible agility.
 * High Pain Tolerance: During the Hospital Raid, Rumi's left forearm was crushed and she was forced to cut it off completely, yet continued to engage in extremely intense combat without issue. Even after sustaining further injuries, she was still able to seemingly ignore the pain enough to achieve her objective and destroy Tomura's container.
 * Master Hand-to-Hand Combatant: Due to her Quirk, Rumi primarily relies on hand-to-hand combat to restrain and incapacitate Villains. Thanks to her strong legs, she heavily favors kicks in her fighting style, matched with incredible speed and the ability to build up momentum by jumping from one spot to the next.
 * Intuition: As seen during the heroes raid against Kyudai's hospital and against the High-End Nomus, Rumi showcased to have immensely sharp instincts and intuition, with her having been able to detect the severe danger Tomura possessed despite him being medically deceased.

Quirk
Rabbit: Rumi's Quirk gives her the attributes and abilities of a rabbit. This grants her incredible leg strength, allowing her to jump and kick with extreme force; she can even destroy large chunks of the ground by thumping her foot. She also has excellent hearing thanks to her rabbit-like ears and possesses animal instincts that alert her to nearby danger.

Ultimate Moves

 * Luna Ring: Rumi uses her incredible leg strength to kick multiple targets simultaneously as she performs a cartwheel in the air with her legs extended.
 * Luna Fall: Rumi swings her foot downwards while she is above her opponent, driving her target straight into the ground beneath her feet with a mighty kick.
 * Luna Tijeras: Rumi mounts onto her opponent's head and grips them tightly with her legs before twisting her body, pulling with all of her superhuman leg strength to rip her opponent's head cleanly off and then smashing it into the ground.
 * Luna Arc: Rumi raises her leg and delivers a powerful front-facing axe kick on to her opponent.
 * Luna Rush: Mirko rushes towards her opponent and pummels them with a series of powerful kicks.

Battles & Events
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Chapter Appearances

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Anime Appearances

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Vigilantes Chapter Appearances

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Trivia

 * Rumi's surname contains the kanji for "rabbit" (兎) and "mountain" (山). Since her first name, "Rumi" (ルミ), is written in katakana, it has no kanji reading.
 * The moon emblem on her costume and her rabbit-like design might be references to the tales of the.
 * This is furthered by her special moves all containing the word "Luna", another word for Moon.
 * Rumi is currently the highest-ranking female Pro Hero in Japan.
 * Rumi likes carrots, a stereotypical rabbit food.
 * Rumi ranked 20th in the 6th Popularity Poll.
 * Rumi ranked 32nd in the 7th Popularity Poll.
 * Rumi's hero name was inspired by former professional fighter.
 * Rumi's rabbit-like motif and birthday being in March may be a reference to the from.
 * Rumi is the first Pro Hero confirmed to not work at an agency or be affiliated with some other institution.
 * Rumi shares her birthday with Tatsuyuki Tokoname.
 * Rumi is one of the two top Pro Heroes confirmed not to have attended U.A. High School, the other being Hawks. Instead, Rumi attended an unnamed hero school in Hiroshima.

Quotes

 * "To all plotters and schemers out there!! Hope you're ready for me to kick your butts."
 * "Only weaklings join teams!"
 * "Quick as a rabbit! It's no sweat. If you're going die, get the job done first... Mirko!! Not done yet! Because a Hero never, ever... gives up!!"
 * "The second this guy came into view... my body just knew. My rabbit survival instincts told me... that this dude is bad news! This thing! It can't be released into the world!! No matter the cost!!"

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