My Hero Academia Wiki
My Hero Academia Wiki

Ribby (アバラ Abara?) was one of Doctor Kyudai Garaki's intelligent High-End Nomu that he kept in his lab under Jaku General Hospital. He and his kin act as some of the secondary antagonists of the Paranormal Liberation War Arc.


Ribby possesses a humanoid appearance, like nearly all the other Nomu, though also features a long antennae-like head, which has the capacity to extend to greater lengths. However, unlike other Nomu, his body is noticeably shriveled and underweight, with little physical muscle compared to other High Ends. His ribs protrude out from the inside of his chest, hence his name.


Being originated from the body of a killer, Ribby acts incredibly unhinged with his immediate desire to kill the heroes once being awoken. He also possesses some semblance of intelligence, as he is able to recognize and understand his environment and opponents, and uses that to his advantage.



Before being turned into a High-End Nomu, Ribby was once a psychotic serial killer. He was carefully selected by Doctor Garaki to be made into a Nomu for this reason.[1]

Paranormal Liberation War Arc

As the heroes start their raid on Jaku Hospital, Doctor Garaki prepares to use Johnny's Quirk to warp himself and Tomura Shigaraki to safety. Before he can, however, Mirko bursts inside his lab, inadvertently killing Johnny in the process.

The now trapped Doctor releases five High-End Nomu, one of them being Ribby, in an effort to push Mirko back as he tends to Tomura. Ribby, under the impromptu leadership of Woman, proceeds to attack the Hero.[2] However, due to being released early without stabilization time, they are easily pushed back by Mirko.

Eventually throughout the battle, as the stabilization kicks in and the High-Ends become more comfortable with their bodies, they are able to much more freely defend themselves and attack Mirko. Knowing this, she proceeds to try and escape and head toward the Doctor and Tomura's location, but Ribby uses his antennae to quickly extend itself far along, catching up and grabbing ahold of Mirko before she can destroy Tomura's capsule.

He makes his way over there to stop her, but is surprised by Endeavor who slams down right on his head, allowing Mirko to break free and destroy the capsule. Eraser Head arrives and uses his Quirk on some of the High-Ends, including Ribby, so that they will be much easier to destroy, however having figured out Eraser Head's trick, Woman distracts him long enough for Ribby to take advantage and once again use his antennae to pierce through Mirko, cutting through her chest and legs and cutting off her ear, pulling her back before she is rescued by Endeavor.

He is eventually overwhelmed by the rest of the Pro Heroes that soon arrive to assist, and then alongside the rest of the High-Ends, is destroyed by Tomura's Decay.


Overall Abilities: Like other Nomu, he was shown to be decently powerful. Possessing the ability to contend against top pro heroes like Endeavor and Mirko and even survive a combined assault from several Pro Heroes for an extended period of time without his Quirks. His antennae Quirk was shown to have enough power to pierce through Mirko's body.

  • Enhanced Strength: Like other High Ends, Ribby was shown to possess a high degree of physical strength. Even after suffering numerous injuries and having his Quirks erased, he easily crushed Eraser Head's leg.
  • Enhanced Speed: Ribby possessed enough speed to keep up with Mirko's movements. He effectively follows her moves to attack her and interrupt her from reaching Tomura. He even displayed quick enough reflexes to defend against a surprise Jet Burn from Endeavor.


Super Regeneration (超再生 Chōsaisei?): Like all High-End Nomu, Ribby possessed this Quirk, which gave him the ability to regenerate from any damage he took.

Unnamed Antennae Quirk: Allowed Ribby to extend the antennae on his head to a significant length, allowing him to grab ahold of and directly pierce through objects and opponents.

Unnamed Rib Cage Quirk: Allowed Ribby to use his rib cage in a variety of purposes and shapes, such as attacking and defense.

Battles & Events

Battles & Events

Chapter Appearances

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 Absent
259. A Quiet Beginning Absent
260. Life's Work Absent
261. High-Ends Debut
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! Death
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 Absent
284. Deep Blue Battle Absent
285. Katsuki Bakugo Rising Absent
286. The Ones Within Us Absent
287. Mistake Absent
288. Save Takeo!! Absent
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 Absent
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 Absent


  1. My Hero Academia Manga: Chapter 262 (p. 4).
  2. My Hero Academia Manga: Chapter 261 (p. 4).

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