If you do this, we just might win. But there's no time to hesitate, so do it now! You wanna be a hero, don't you?! Then let's pass this test.
Kyoka Jiro to Koji Koda in "Midoriya's Observations"

Kyoka Jiro ( () (ろう) (きょう) () Jirō Kyōka?), also known as the Hearing Hero: Earphone Jack (ヒアヒーローイヤホン=ジャック Hia Hīrō Iyahon Jakku?), is a student in Class 1-A at U.A. High School, training to become a Pro Hero.

Appearance

Kyoka is a petite, fair-skinned girl with a slender build. She has triangular, lazy-looking onyx eyes with notably long lower eyelashes and rather small eyebrows. Her hair is short, only around chin length, and is dark purple in color with an asymmetrical fringe, and two reflections shaped like heartbeat monitor waves on either side of her head. Her most prominent features are the flexible, plug-like earphone jacks hanging from each of her earlobes at the end of two thin cords, which act like extra limbs; she seems to be able to control these at will, and they are very flexible, able to change length if so desired.

Unlike the other students, Kyoka sometimes wears a waistcoat over her school uniform, in place of the usual U.A. blazer.

Her hero costume consists of a black leather jacket, long salmon-colored shirt with several rips at the collar and hem, black pants, and boots with stereos built into their shafts. She also has two small, triangular red paint marks just below her eyes, a plain black choker, and white fingerless gloves.

Later on, her costume gains a set of headphones with two bracelets that double up as her amplifiers and she changes her facepaint to two larger chevron-shaped marks.

Gallery

Personality

Kyoka attacking Yuga and Denki for "complimenting" her.

Kyoka has a pragmatic, unenthusiastic, and teasing personality that is mostly shown to those she finds irritating, like her fellow classmate Denki Kaminari, whose cluelessness makes him an easy target for her snarky comments. Kyoka is not always like this though, as she does enjoy socializing with others, in which case she is usually nice and friendly.

Kyoka often gesticulates through her elongated earlobes in place of her hands.[1] She can also be quite aggressive, evidenced when she uses the Earphone Jacks her Quirk provides to physically punish people when provoked or to keep them in line, most notably Denki and Minoru Mineta. During hero activities, however, Kyoka prefers smarter approaches, usually by coming up with a plan herself. She is surprisingly organized and makes sure to convey her ideas in a way that's easy to understand.

Kyoka depressed about not being seen as attractive by Minoru.

Despite the fact that she comes off as cold and indifferent, Kyoka also has a much more sensitive side, being very defensive towards her friends, empathetic with others' feelings, and getting flustered when her talents and capabilities are brought up.[2][3][4] While Kyoka is hard to unnerve or surprise, she is afraid of horror-based activities and has an aversion to nudity. She is a bit self-conscious about her looks as well.

Like her parents, Kyoka has a major interest in rock music and owns several instruments which she is able to play to some extent. However, she seemed to be somewhat embarrassed about her interests at first, because she perceived them as completely unrelated to heroism, but thanks to a great presentation during the U.A. School Festival, she was able to outgrow that mindset.

Abilities

Kyoka tag-teams with Mashirao to ambush Nine.

Overall Abilities: While she doesn't commonly employ close-quarters combat efficiency, Kyoka makes effective use of the handling she has on her Quirk, Earphone Jack. She utilizes the prehensile nature of her Earphone Jack Quirk in whip-like fashion, and use the sound generating effects of her Quirk to shock targets with vibrations, effectively stunning and sometimes defeating them. By the time of the Provisional Hero License Exam, Kyoka improved the efficacy of her Quirk, allowing her to plug her earphone jacks into the ground, and generate sound waves strong enough to make the ground quake, cause fissures, and disrupt large enemy formations. Her abilities eventually garnered the attention of Gang Orca, giving Kyoka the opportunity to intern under the No. 12 (formerly No. 10) Pro Hero, and improve on her search techniques. On Nabu Island, Kyoka, alongside Mashirao Ojiro, acted as the fourth line of defense against Nine, and effectively ambushed him before he subdued the two with his Hydra Quirk. Soon after, Mashirao and Kyoka aided Mezo Shoji against the powerful foe, forcing Nine into using the full power of his Air Wall Quirk to defeat the trio of students.

  • Swordsmanship: Though she does not directly use a sword in combat, Kyoka has shown to be skilled enough to wield a sword Momo Yaoyorozu had made during the U.S.J. Incident, and use it hold her own against low-tier members of the League of Villains.

Kyoka's beautiful voice.

Keen Intellect: Despite her unenthusiastic demeanor, Kyoka is quite intelligent, scoring 7th place in the midterms, displaying her skill in academics. She is also quite strategic, as she took advantage of the volatile nature of Denki's Quirk to allow the Stun Gun Hero to electrocute multiple villains during the U.S.J. Incident.

Musical Talent: Kyoka is able to play the bass, which is her preferred instrument alongside the guitar. She can play other instruments as well, like drums, but only to a limited extent. Her singing voice is described as "husky, but heavenly".

Quirk

Kyoka using her Jacks to listen in.

Earphone Jack (イヤホンジャック Iyahon Jakku?): Kyoka's Quirk is that she has a pair of headphone jacks hanging from her earlobes. When the jacks are plugged into something, Kyoka can channel the sound of her heartbeat into it in the form of a violent vibration attack. She can stretch her earlobes several meters. This Quirk also allows her to hear minuscule sounds and vibrations from her surroundings.

As part of her training, Kyoka honed her headphone jacks by repeatedly piercing them into a stone cliff, all to increase the amount of audio she can hear with her Quirk.

Super Moves

  • Counter-Balance (カウンターバランス Kauntābaransu?): Using her amps on her leg, Kyoka fires off large sound waves to cancel out attacks.[5]
  • Heartbeat Distortion (ハートビートファズ Hātobīto Fazu?): Using special sound-amplifying items located on her forearms, Kyoka plugs her jacks into those amplifiers and slams them onto the floor, channeling a powerful heartbeat that causes the ground to shatter due to the enhanced vibrations.[6]
  • Heartbeat Surround (ハートビートサラウンド Hātobīto Saraundo?): Using the same sound-amplifying items from her Heartbeat Distortion technique, Kyoka uses her jacks to remove the equipment pieces from her wrists and aim them towards a target, channeling a loud heartbeat that ignores conventional defenses and incapacitates foes.[7]

Stats

Power
 
1/5 E
Speed
 
3/5 C
Technique
 
3/5 C
Intelligence
 
3/5 C
Cooperativeness
 
5/5 A
Kyoka's stats, according to the Ultra Archive Book

Power
 
3/6 C
Speed
 
3/6 C
Technique
 
4/6 B
Intelligence
 
4/6 B
No Music No Life
 
5/6 A
Kyoka's stats, according to the Ultra Analysis Book

Equipment

Amplifier Jack (音響増幅 (アンプリファー) ジャック Anpurifā Jakku?): Devices that Kyoka can plug her jacks into, amplifying even further the sound and vibration of her heartbeat. They are worn on both of her forearms.

Stereo Boots: A pair of boots that Kyoka can plug her earphone jacks into. They amplify her heartbeat and can direct the vibrations in a certain direction.

Headphones: A device that presumably compliments her jacks' ability to pick up sound vibrations.

Battles & Events

Battles & Events

Quirk Apprehension Test Arc

Battle Trial Arc

U.S.J. Arc

U.A. Sports Festival Arc

Vs. Hero Killer Arc

Final Exams Arc

My Hero Academia: Two Heroes

Forest Training Camp Arc

Provisional Hero License Exam Arc

Shie Hassaikai Arc

U.A. School Festival Arc

Joint Training Arc

My Hero Academia: Heroes: Rising

Endeavor Agency Arc

Paranormal Liberation War Arc


Relatives

   
   
Kyotoku
   
   
Mika
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
Kyoka

Chapter Appearances

Appearances
Quirk Apprehension Test Arc
5. Smashing into Academia Debut
6. What I Can Do For Now Appears
7. Costume Change? Appears
Battle Trial Arc
8. Rage, You Damned Nerd Appears
9. Deku vs. Kacchan Appears
10. Breaking Bakugo Appears
11. Bakugo's Starting Line Appears
U.S.J. Arc
12. Yeah, Just Do Your Best, Ida! Appears
13. Rescue Training Appears
14. Encounter with the Unknown Appears
15. Vs. Absent
16. Know Your Enemies Appears
17. Game Over Absent
18. Heroes' Counterattack Absent
19. All Might Absent
20. The World of Pros Appears
21. In Each of Our Hearts Appears
U.A. Sports Festival Arc
22. That's the Idea, Ochaco Appears
23. Roaring Sports Festival Appears
24. Mad Dash and Knockdown Appears
25. In Their Own Quirky Ways Appears
26. Chase Down the Leader Appears
27. Earth-Shatteringly Fateful Negotiations Appears
28. Strats, Strats, Strats Appears
29. Unaware Appears
30. Cavalry-Match Finale Appears
31. The Boy Born with Everything Appears
32. Smile, Prince of Nonsense Land! Appears
33. Shinso's Situation Appears
34. Victory or Defeat Absent
35. Battle On, Challengers! Appears
36. Bakugo vs. Uraraka Appears
37. Midoriya and Endeavor Appears
38. Todoroki vs. Midoriya Appears
39. Shoto Todoroki: Origin Absent
40. Emancipation Appears
41. Fight On, Ida! Absent
42. Final-Match Time Absent
43. Todoroki vs. Bakugo Absent
44. Relaxing Day Off Appears
Vs. Hero Killer Arc
45. Time to Pick Some Names Appears
46. Bizzarre! Gran Torino Appears Appears
47. Struggling Absent
48. Getting the Knack Absent
49. Midoriya and Shigaraki Absent
50. Kill 'Em Dead Absent
51. No, Knock it Off, Ida! Absent
52. Hero Killer Stain vs. U.A. Students Absent
53. From Todoroki to Ida Absent
54. Re: Ingenium Absent
55. Conclusion?! Absent
56. Conclusion Absent
57. The Aftermath of Hero Killer Stain Absent
58. Internship's End Appears
59. Listen Up! A Tale From the Past Appears
Final Exams Arc
60. Gear Up For Final Exams Appears
61. The Worst Combo Appears
62. Katsuki Bakugo: Origin Absent
63. Yaoyorozu Rising Mentioned
64. The Task at Hand Appears
65. Wall Absent
66. Midoriya's Observations Appears
67. Stripping the Varnish Absent
68. Encounter Appears
69. Interview with Midoriya Absent
Forest Training Camp Arc
70. Wild, Wild Pussycats Appears
71. Kota Appears
72. Day Two Appears
73. Good Evening Appears
74. Smoke Signal Absent
75. Stake Your Life, Hero! Absent
76. My Hero Absent
77. It's Chaos Absent
78. Whirling Chaos Absent
79. Drive It Home, Iron Fist!!! Absent
80. Establishing the Bakugo Bodyguard Brigade Absent
81. Roaring Upheavel Appears
82. What a Twist! Absent
83. Loss Mentioned
Hideout Raid Arc
84. From Ida to Midoriya Mentioned
85. Nothing but Fools Absent
86. Before the Storm Flashback
87. Clash Absent
88. All For One Absent
89. All for a Certain One Absent
90. Reach Out Absent
91. Symbol of Peace Absent
92. One For All Absent
93. One For All's Ember Absent
94. From Teacher to Disciple Absent
95. End of the Beginning, Beginning of the End Absent
96. Home Visits Appears
97. Tell It Like It Is, Mom Appears
Provisional Hero License Exam Arc
98. Moving into Dorms Appears
99. Goodbye Two-Digit Chapters, Hello Three Digits Appears
100. Creating Ultimate Moves Appears
101. The Girl Called Mei Hatsume Appears
102. On Cloud Nine Appears
103. The Test Appears
104. White-Hot Battle! To Each Their Own Strengths! Appears
105. Shiketsu High Lurking Absent
106. Class 1-A Absent
107. Denki Kaminari's Thoughts Appears
108. RUSH! Appears
109. Rescue Exercise Appears
110. Rescue Exercise Continued Absent
111. Smoldering Start Absent
112. What's the Big Idea? Absent
113. Test's Aftermath Appears
114. Result's Aftermath Appears
115. Unleashed Absent
116. Meeting in Tartarus Absent
117. A Talk About Your Quirk Absent
118. Meaningless Battle Absent
119. Deku vs. Kacchan, Part 2 Absent
120. The Three Absent
121. Second Semester Opening Ceremony Appears
Shie Hassaikai Arc
122. A Season for Encounters Appears
123. Unrivaled Appears
124. Trouble Ahead!! Episode: Work Studies Appears
125. Overhaul Absent
126. Open Up, World Appears
127. Sir Nighteye and Izuku Midoriya and Mirio Togata and All Might Absent
128. Boy Meets... Absent
129. Eri Absent
130. Listen to the Truth Appears
131. Fighting Fate Absent
132. The Plan Absent
133. Catch Up, Kirishima Absent
134. Let's Go, Gutsy Red Riot Appears
135. An Unpleasant Talk Absent
136. Close at Hand!! Flashback
137. Restraint!! Appears
138. Go!! Absent
139. Shudder! The Underground Labyrinth Absent
140. Suneater of the Big Three Absent
141. Hassaikai: Behind the Scenes Absent
142. Shield and Shield, Spear and Shield Absent
143. Let’s Rumble, Rappa!! Absent
144. Red Riot, Part 1 Absent
145. Red Riot, Part 2 Absent
146. Temp Squad Absent
147. Twoga!! Absent
148. The Anguish of Young Twoga Absent
149. Don't Get Mad, Irinaka Absent
150. Mirio Togata Absent
151. Mirio Togata!! Absent
152. Lemillion Absent
153. Transform! Absent
154. Unforeseen Hope Absent
155. Saviors, the Saved and a Hero's Place Absent
156. The Power of Those Saved Absent
157. Infinite 100 Percent Absent
158. Chisaki's Warped Compassion Absent
159. It's Over!! Absent
160. Expressway Absent
161. Bright Future Absent
162. Suitable One Absent
Remedial Course Arc
163. Smoldering Flames Appears
164. Masegaki Absent
165. Win Those Kids' Hearts Absent
166. Be Proud, License Trainees Absent
167. Number One Hero's Starting Line Appears
168. The Strange Tale of Aoyama Appears
U.A. School Festival Arc
169. School Festival Appears
170. With Eri Absent
171. Gentle and La Brava Appears
172. Prepping for the School Festival Is the Funnest Part (Part 1) Appears
173. Prepping for the School Festival Is the Funnest Part (Part 2) Appears
174. Golden Tips Imperial Appears
175. Morning, the Day Of Appears
176. Deku vs. Gentle Criminal Flashback
177. At the Construction Site Appears
178. The Woman Called La Brava Absent
179. School Festival Start!! Absent
180. Unbeknownst Absent
181. For Someone Else Appears
182. Let It Flow! School Festival! Appears
183. Festival All Day Long!! Appears
Pro Hero Arc
184. Japanese Hero Billboard Chart Appears
185. Wing Hero: Hawks Absent
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 Absent
192. The Todoroki Family Absent
193. Vestiges Absent
Joint Training Arc
194. Cold Skies Over U.A. High! Appears
195. Clash! Class A vs. Class B! Appears
196. Make It Happen, Shinso!! Appears
197. Quaotic Quirkstravaganza Absent
198. Known Where You Stand When It Counts!! Appears
199. Operation New Improv Moves! Absent
200. Clever Commander! Absent
201. Foresight Absent
202. Match 3 Absent
203. Flexible! Juzo Honenuki! Absent
204. Tuning Up Appears
205. Detour Absent
206. Match 3 Conclusion Appears
207. Early Bird! Appears
208. Match 4 Conclusion Appears
209. Match 5 Start Appears
210. The One For All Dream Appears
211. That Which Is Inherited Appears
212. That Which Is Inherited, Part 2 Absent
213. Realm of Souls Absent
214. Our Brawl Appears
215. Final Face-Off! Midoriya vs. Shinso! Absent
216. Class A vs. Class B: Conclusion Appears
217. The New Power and All For One Appears
Meta Liberation Army Arc
218. The Meta Liberation Army Appears
219. Go! Slidin' Go! Absent
220. My Villain Academia Absent
221. Memento from All For One Absent
222. Tomura Shigaraki: Distortion Absent
223. Cockroaches Absent
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
Endeavor Agency Arc
241. Do That Interview! Appears
242. Have a Merry Christmas! Appears
243. Off to Endeavor's Agency! Absent
244. Recommended Reading Absent
245. Rise to Action Absent
246. Message Appears
247. Status Report! Flashback
248. One Thing at a Time Absent
249. The Hellish Todoroki Family Absent
250. Ending Absent
251. Just One Week Absent
252. The Unforgiven Absent
Paranormal Liberation War Arc
253. Shirakumo Appears
254. You Could Be More of a Hero than Anyone Absent
255. Hero Hopeful Absent
256. The High, Deep Blue Sky Appears
257. Pass It Forward, to Whomever Appears
258. Friends Absent
259. A Quiet Beginning Appears
260. Life's Work Absent
261. High-Ends Absent
262. Mirko, the No. 5 Hero Absent
263. I Wanna Be With You Guys!! Appears
264. One's Justice Absent
265. Villains and Heroes Absent
266. Happy Life Absent
267. Flames Absent
268. Scramble! Absent
269. The Three of Us Absent
270. Inheritance Absent
271. Dark Cloud Absent
272. Good Morning! Absent
273. The Thrill of Destruction Absent
274. Search Absent
275. Encounter, Part 2 Absent
276. You Cheated...! Pictured
277. Who...? Absent
278. Disaster Walker Appears
279. League of Villains vs. U.A. Students Appears
280. Red Riot, Part 3 Appears
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!! 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 Appears
304. Izuku Midoriya and Toshinori Yagi Absent
305. Izuku Midoriya and Tomura Shigaraki Absent
306. The Final Act Begins Appears

Trivia

Kyoka's early concept design.

  • In the preliminary stages of the manga, Kyoka was virtually unchanged from her original design, albeit her hair lacked its signature streaks.
  • Kyoka's surname contains the kanji for "ear" ( ji?) and "son, male" ( ?), and her first name contains "sound, reverberation" ( kyō?), and "incense" ( ka?).
    • Kyoka's first name contains syllables coming from her parents' names. "Kyō" (響) from her father, Kyotoku, and "香" (Ka) from her mother, Mika.
  • According to Kyoka's Volume 3 profile:
    • Her favorite thing is rock.
    • Kyoka may have been the first My Hero Academia character Kohei Horikoshi came up with. He was inspired to make a character that could plug their ears into objects while listening to music on his earphones during a trip back home.
  • Kyoka's rankings in the Popularity Polls are as follows:
    • Kyoka ranked 16th in the First Popularity Poll.
    • Kyoka ranked 7th in the Second Popularity Poll.
    • Kyoka ranked 22nd in the Third Popularity Poll.
    • Kyoka ranked 21st in the Fourth Popularity Poll.
    • Kyoka ranked 12th in the Fifth Popularity Poll.
    • Kyoka ranked 15th in the Sixth Popularity Poll.
  • Kyoka's known U.A. data is as follows:
    • Student No. 12 in Class 1-A
    • Ranked 17th in the Quirk Apprehension Test
    • Ranked 7th in Class 1-A's mid-term grades.
    • Ranked in the Top 42 of the U.A. Sports Festival First-Year Stage.
  • Kyoka's hairstreaks are drawn similarly to the waves of an EKG, a possible reference to how she uses her earphone jacks to amplify her heartbeat.
  • Kyoka is so far the only student in Class 1-A whose hero name is the exact same as her Quirk (Earphone Jack).
  • Kyoka and Denki share the same costume designer.[8]
  • Kyoka and Fuyumi Todoroki share the same Japanese voice actor, Kei Shindō.

Quotes

  • (To Koji about using his Quirk to combat Present Mic) "If you do this, we just might win. But there's no time to hesitate, so do it now! You wanna be a hero, don't you?! Then let's pass this test."[9]

References

  1. My Hero Academia Anime: Episode 26.
  2. My Hero Academia Manga: Chapter 59.
  3. My Hero Academia Manga: Chapter 66.
  4. My Hero Academia Manga: Chapter 72.
  5. My Hero Academia Manga and Anime: Chapter 66 (p. 14) and Episode 36.
  6. My Hero Academia Manga and Anime: Chapter 104 (p. 4) and Episode 54.
  7. My Hero Academia Manga: Chapter 208 (p. 8).
  8. My Hero Academia Manga: Vol. 13.
  9. My Hero Academia Manga: Chapter 66 (p. 16).

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