I live every day of my life like there's no tomorrow so that when my number's up, I can check out with no regrets! No way this horde of zombies is gonna end Mirko the Hero.
Rumi Usagiyama in "Mirko, the No. 5 Hero"

Rumi Usagiyama ( (うさぎ) (やま) ルミ Usagiyama Rumi?), also known as Rabbit Hero: Mirko (ラビットヒーロー ミルコ Rabitto Hīrō Miruko?) is the No. 5 Pro Hero.[4]


Rumi has an athletic build with muscular arms and legs. She has dark skin, red eyes which are tilted slightly inwards, long eyelashes, and straight white hair reaching down past her waist. 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 round white 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 two thick metal plates on 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 by a High-End Nomu and the tip of her right ear was sliced off.[3] [5]



Rumi is tough and speaks her mind, even if it causes confrontation[4] and she respects those who do the same.[6] 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.[4]

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 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.[3]

Rumi is capable of enduring extreme pain without losing focus. She faces her own wounds reluctantly. She is pragmatic and quick thinking, as she binds off her bloodstream with her own thick hair, to keep fighting without her arm.[3]


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 though minimalistic noise. She was also shown to be capable of multitasking, as she simultaneously attacks, dodges, and concludes information about the enemies.[3]

  • 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.[7] Remarkably, she was able to momentarily incapacitate some of the High-End Nomu and sever one of their heads.[8] 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.[5]
  • 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.[7] She was also fast enough to keep up with the High-End Nomu,[3] but once they began to stabilize, Rumi was unable to land any more blows on the High-Ends.[5]
  • Enhanced Dexterity: Rumi has shown to possess incredible control over her limbs and body, as seen when she fights multiple High-Ends.[9][10][11]
  • Enhanced Agility: Rumi has shown to have incredible agility.[12][11]
  • 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 Shigaraki'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.


Mirko defeating Nomu

Mirko defeating Nomus with ease.

Rabbit ( (うさぎ) Usagi?): 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 possess animal instincts that alert her to nearby danger.

Super Moves

  • Luna Ring (踵月輪 (ルナ リング) Runa Ringu?): Rumi uses her incredible leg strength to kick multiple targets simultaneously as she performs a cartwheel in the air with her legs extended.[3]
  • Luna Fall (月墜蹴 (ルナ フォール) Runa Fōru?): 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 (月頭鋏 (ルナティヘラ) Runa Tihera?): 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 (踵半月輪 (ルナアーク) Runa Āku?): Rumi raises her leg and delivers a powerful front-facing ax kick on to her opponent.


5/6 A+
5/6 A+
3/6 C
3/6 C
Bounce Power
5/6 A
Rumi's stats, according to the Ultra Analysis Book

Battles & Events

Chapter Appearances

Pro Hero Arc
184. Japanese Hero Billboard Chart Debut
185. Wing Hero: Hawks Appears
186. Endeavor and Hawks Absent
187. Flaming Roar! vs. Nomu: High-End Absent
188. Your Father, the Number One Hero Absent
189. Why He Gets Back Up Absent
190. His Start Absent
191. Dabi, Hawks, Endeavor Appears
192. The Todoroki Family Flashback
193. Vestiges Absent
Meta Liberation Army Arc
218. The Meta Liberation Army Absent
219. Go! Slidin' Go! Absent
220. My Villain Academia Absent
221. Memento from All For One Absent
222. Tomura Shigaraki: Distortion Absent
223. Cockroaches Mentioned
224. Revival Party Absent
225. Interview with a Vampire Absent
226. Bloody Love Absent
227. Sleepy Absent
228. Wounded Soul Absent
229. All It Takes Is One Bad Day Absent
230. Sad Man's Parade Absent
231. Path Absent
232. Meta Abilities and Quirks Absent
233. Bright Future Absent
234. Sense Destruction Absent
235. Tenko Shimura: Origin Absent
236. Tenko Shimura: Origin, Part 2 Absent
237. Tomura Shigaraki: Origin Absent
238. Liberation Absent
239. Successor Absent
240. Power Absent
Paranormal Liberation War Arc
253. Shirakumo Absent
254. You Could Be More of a Hero than Anyone Absent
255. Hero Hopeful Absent
256. The High, Deep Blue Sky Absent
257. Pass It Forward, to Whomever Absent
258. Friends Appears
259. A Quiet Beginning Appears
260. Life's Work Appears
261. High-Ends Appears
262. Mirko, the No. 5 Hero Appears
263. I Wanna Be With You Guys!! Absent
264. One's Justice Absent
265. Villains and Heroes Absent
266. Happy Life Absent
267. Flames Appears
268. Scramble! Appears
269. The Three of Us Appears
270. Inheritance Absent
271. Dark Cloud Absent
272. Good Morning! Appears
273. The Thrill of Destruction Absent
274. Search Absent
275. Encounter, Part 2 Absent
276. You Cheated...! Absent
277. Who...? Absent
278. Disaster Walker Absent
279. League of Villains vs. U.A. Students Absent
280. Red Riot Absent
281. Plus Ultra Absent
282. Footfall of Destruction Absent
283. 75 Appears


  • Rumi's surname contains the kanji for "rabbit" ( usagi?) and "mountain" ( yama?). Since her first name, "Rumi" (ルミ rumi?), is written in katakana, it has no known kanji reading.
  • The moon on her chest and her rabbit-like design might be referencing the tales of the Moon Rabbit.
  • Rumi is currently the highest-ranking female Pro Hero in Japan.
  • Rumi likes carrots,[1] a stereotypical rabbit food.
  • Rumi's hero name was inspired by former professional fighter Mirko "Cro Cop" Filipović.[1]
  • Rumi's rabbit-like motif and birthday being in March may be a reference to the March Hare from Alice in Wonderland.
  • Rumi is the first Pro Hero confirmed to not work at an agency or be affiliated with some other institution.[2]
  • Rumi also shares her birthday with Tatsuyuki Tokoname.


  • "To all plotters and schemers out there!! Hope you're ready for me to kick your butts."[13]
  • "Only weaklings join teams!"[14]


  1. 1.0 1.1 1.2 1.3 1.4 My Hero Academia Manga: Vol. 20, Omake
  2. 2.0 2.1 2.2 My Hero Academia Official Character Book 2 Ultra Analysis.
  3. 3.0 3.1 3.2 3.3 3.4 3.5 3.6 My Hero Academia Manga: Chapter 262.
  4. 4.0 4.1 4.2 My Hero Academia Manga and Anime: Chapter 184 (p. 15) and Episode 87.
  5. 5.0 5.1 5.2 My Hero Academia Manga: Chapter 267.
  6. My Hero Academia Manga: Chapter 185 (p. 5-6).
  7. 7.0 7.1 My Hero Academia Manga: Chapter 260.
  8. My Hero Academia Manga: Chapter 262 (p. 15).
  9. My Hero Academia Manga: Chapter 262 (p. 10-11).
  10. My Hero Academia Manga: Chapter 262 (p. 14).
  11. 11.0 11.1 My Hero Academia Manga: Chapter 267 (p. 14-15).
  12. My Hero Academia Manga: Chapter 262 (p. 7).
  13. My Hero Academia Manga: Chapter 185.
  14. My Hero Academia Manga and Anime: Chapter 184 and Episode 87.

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