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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.[6]


Rumi has an athletic build with muscular arms and legs, who stands 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 she had 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 the High-End Nomu, while the tip of her right ear was sliced off.[5][7] In the aftermath of the War, she now possesses a prosthetic left forearm and right leg, which are interchangeable in case they get destroyed.[8]



Rumi's fierce and combative attitude.

Rumi is tough and speaks her mind, even if it causes confrontation,[6] and she respects those who do the same.[9] 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.[6] 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.[10] 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.[11]

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.[5] 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 binds off her bloodstream with her own thick hair, to keep fighting without her arm.[5]


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.[5]

  • 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.[12] Remarkably, she was able to momentarily incapacitate some of the High-End Nomu and sever one of their heads.[5] 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.[7]
  • 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.[12] She was also fast enough to keep up with the High-End Nomu,[5] but once they began to stabilize, Rumi was unable to land any more blows on the High-Ends.[7]
  • Enhanced Dexterity: Rumi has shown to possess incredible control over her limbs and body, as seen when she fights multiple High-Ends.[5][5][7]
  • Enhanced Agility: Rumi has shown to have incredible agility.[5][7]
  • 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 Nomu's, Rumi showcased to have immensely sharp instincts and intuition, with her having been able to detect the severe danger Tomura Shigaraki possessed despite him being medically deceased.


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 possesses 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.[5]
  • 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 axe kick on to her opponent.


5/6 A+
5/6 A+
3/6 C
3/6 C
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. Destruction Sense 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. 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, Part 3 Absent
281. Plus Ultra Absent
282. Footfall of Destruction Absent
283. 75 Appears
284. Deep Blue Battle Absent
285. Katsuki Bakugo Rising Absent
286. The Ones Within Us Absent
287. Mistake Absent
288. Save Takeo!! Mentioned
289. Miss Candid and Miss Shut-Away Absent
290. Dabi's Dance Absent
291. Thanks For Going Strong Absent
292. Threads of Hope Absent
293. Hero-Saturated Society Absent
294. Final Performance Appears
295. Tenacious Absent
296. Hellish Hell Absent
297. Tartarus Absent
298. Sounds of Collapse Absent
299. Like Those Tragic Tales Absent
300. The Hellish Todoroki Family, Part 2 Absent
301. The Wrong Way to Put Out a Fire, Part 1 Absent
302. The Wrong Way to Put Out a Fire, Part 2 Absent
303. Top Three Absent
304. Izuku Midoriya and Toshinori Yagi Absent
305. Izuku Midoriya and Tomura Shigaraki Absent
306. The Final Act Begins Appears
Tartarus Escapees Arc
307. Been a While!! Absent
308. Full Power!! Absent
309. Can't Be a Child Anymore Absent
310. Masters and Pupil Absent
311. Here We Go!! Absent
312. Hired Gun Absent
313. High-Speed Long-Range Mobile Cannon Absent
314. The Lovely Lady Nagant Absent
315. Platitudes Absent
316. Your Turn Absent
317. Scars, Blood, Filth Absent
318. Reckless Absent
319. Friend Absent
320. Deku vs. Class A Absent
321. From Class A to One For All Absent
322. Great Explosion Murder God Dynamight Absent
323. That Single Step Absent
324. A Young Woman's Declaration Absent
325. The Bonds of One For All Mentioned
326. Who Are You Really? Absent
327. Rest!! Absent
328. No Man Is an Island Absent

Anime Appearances

Season 4
64. The Scoop on U.A. Class 1-A Absent
65. Overhaul Absent
66. Boy Meets... Absent
67. Fighting Fate Absent
68. Let's Go, Gutsy Red Riot Absent
69. An Unpleasant Talk Absent
70. GO!! Absent
71. Suneater of the Big Three Absent
72. Red Riot Absent
73. Temp Squad Absent
74. Lemillion Absent
75. Unforeseen Hope Absent
76. Infinite 100% Absent
77. Bright Future Absent
78. Smoldering Flames Absent
79. Win Those Kids' Hearts Absent
80. Relief for License Trainees Absent
81. School Festival Absent
82. Prepping for the School Festival Is the Funnest Part Shadow
83. Gold Tips Imperial Absent
84. Deku vs. Gentle Criminal Absent
85. School Festival Start!! Absent
86. Let It Flow! School Festival! Absent
87. Japanese Hero Billboard Chart Debut
88. His Start Absent
Season 5
89. All Hands on Deck! Class 1-A Absent
90. Vestiges Appears
91. Clash! Class A vs. Class B! Absent
92. Make It Happen, Shinso! Absent
93. Operation New Improv Moves Absent
94. Foresight Absent
95. Match 3 Absent
96. Match 3 Conclusion Absent
97. Early Bird! Absent
98. That Which Is Inherited Absent
99. Our Brawl Absent
100. The New Power and All For One Absent
101. Have a Merry Christmas! Fantasy
102. Off to Endeavor's Agency! Absent
103. One Thing at a Time Absent
104. Long Time No See, Selkie Absent
105. The Hellish Todoroki Family Absent
106. The Unforgiven Absent
107. More of a Hero Than Anyone Absent
108. My Villain Academia Pictured
109. Revival Party Flashback
110. Sad Man's Parade Absent
111. Tenko Shimura: Origin Absent
112. Tomura Shigaraki: Origin Absent
113. The High, Deep Blue Sky Absent

Vigilantes Chapter Appearances

Sky Egg Arc
36. Must-Have Merchandise Absent
37. Public and Private Absent
38. High-Speed Absent
39. A Rational Man Absent
40. A Rational Team-Up Absent
41. Ultimate Move! Absent
42. Mixer Absent
43. Casanova Absent
44. One Outrageous Traveler Absent
45. The Man Returns Absent
46. Christmas Eve Hero Absent
47. Farewell Party! Debut
48. Investigation Start! Steamy Romance Spotted?! Absent
49. Zero Hour Appears
50. Defend the Tower! Appears
51. I Do What I Can Appears
52. Balloon Soul Absent
53. Limits and Catastrophe Appears
54. Hotline Appears
55. This Is a Hero!! Appears
56. I'm No Hero Absent
57. Explosive Man Absent
58. International Flight Home Absent
Underground Masquerade Arc
86. Underground Fighting Tournament Absent
87. Rap Rap Rap Appears
88. Hidden Face, Bare Ears Appears
89. Super-Smashing Tiger Bunny! Appears
90. Team-Up in the Underground Appears
91. Dash Ahead to Plan B Appears
92. Might Signal Appears
93. Three-Second-Back-and-Forth Appears
94. Underground Roots Flashback
94.5. Tanuma Report Absent


  • 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 kanji reading.
  • The moon emblem on her costume and her rabbit-like design might be references to the tales of the Moon Rabbit.
    • 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,[3] 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 Mirko "Cro Cop" Filipović.[3]
  • 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.[4]
  • 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.


  • "To all plotters and schemers out there!! Hope you're ready for me to kick your butts."[9]
  • "Only weaklings join teams!"[6]
  • "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!!"[7]
  • "The second this guy came into 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!!"[13]


  1. My Hero Academia: Vigilantes Manga: Chapter 88.
  2. My Hero Academia Manga: Vol. 20, Omake
  3. 3.0 3.1 3.2 3.3 My Hero Academia Manga: Vol. 20.
  4. 4.0 4.1 4.2 My Hero Academia: Ultra Analysis: The Official Character Guide.
  5. 5.00 5.01 5.02 5.03 5.04 5.05 5.06 5.07 5.08 5.09 5.10 My Hero Academia Manga: Chapter 262.
  6. 6.0 6.1 6.2 6.3 My Hero Academia Manga and Anime: Chapter 184 and Episode 87.
  7. 7.0 7.1 7.2 7.3 7.4 7.5 My Hero Academia Manga: Chapter 267.
  8. My Hero Academia Manga: Chapter 343.
  9. 9.0 9.1 My Hero Academia Manga: Chapter 185.
  10. My Hero Academia Manga and Anime: Chapter 191 and Episode 90.
  11. My Hero Academia: School Briefs V.
  12. 12.0 12.1 My Hero Academia Manga: Chapter 260.
  13. My Hero Academia Manga: Chapter 268.

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