Don't go thinking what you did was right! The show didn't get canceled because you weren't hurt too bad! But that doesn't make it okay! You're still a student here, with only a provisional license! When there's a fight, you rely on us! We're here to protect you kids!
Ryo Inui scolding Izuku Midoriya in "Festival All Day Long!!"

Ryo Inui ( (いぬ) () (りょう) Inui Ryō?),[2] also known as the Hunting Dog Hero: Hound Dog (猟犬ヒーローハウンドドッグ Ryōken Hīrō Haundodoggu?), is a Pro Hero, and the lifestyle guidance counselor at U.A. High School.[1]


Ryo has the appearance of dog due to his Quirk. He has a scruffy mane of blond hair sticking straight out behind his head. He also wears a muzzle over his slightly pointed snout in his hero costume.


When angry, Ryo speaks in an incoherent and violent manner with a mix of words and a sound akin to a dog's growling.[4]


U.S.J. Arc

Ryo and several other U.A. teachers arrive at the U.S.J. to help Class 1-A and All Might against the League of Villains' attack.[5]

Shie Hassaikai Arc

During the Opening Ceremony, Ryo has some final comments. Unfortunately, his anger causes his speech to come out as a mix of words and incoherent growls, ending with a howl which scares a few of the students. Sekijiro Kan relieves Ryo of his speech and reiterates what Ryo wanted to say as the Pro Hero sulks away angrily.[6]

U.A. School Festival Arc

Ryo and Ectoplasm are put in charge of security at the U.A. School Festival.[7] The night before the festival, Ryo is seen yelling at Class 1-A to go to sleep.

Ryo and Ectoplasm happen upon Gentle and La Brava.

As the festival begins, Ryo smells the intruders[8] and heads out with several clones of Ectoplasm. They come across Gentle Criminal and La Brava after the criminals are beaten by Izuku Midoriya, and Gentle declares his surrender.[9]

After Class 1-A's Show, Ryo praises Izuku for preventing the festival from being canceled, however he also scolds him for being out of line since he failed to contact any Heroes in the vicinity and reminds him that he is not the only Hero out there protecting the peace. Izuku acknowledges his fault which satisfies Ryo who sends Izuku flying towards the festival, telling him to have fun.[10]


Skilled Youth Counselor: As a high school guidance counselor, it is implied that he is skilled in helping youths deal with their problems.


Dog ( (いぬ) Inu?): Ryo's Quirk gives him the attributes and abilities of a dog, such as a heightened sense of smell.


5/6 A+
5/6 A
2/6 D-
4/6 B
Canine Loyalty
5/6 A
Ryo's stats, according to the Ultra Analysis Book


Sekijiro Kan

Ryo and Sekijiro appear to get along well. After Ryo has an angry fit, Sekijiro approaches him and takes over for his speech, having understood what Ryo wanted to say.[6]

Battles & Events

Battles & Events

Chapter Appearances

U.S.J. Arc
12. Yeah, Just Do Your Best, Ida! Absent
13. Rescue Training Absent
14. Encounter with the Unknown Absent
15. Vs. Absent
16. Know Your Enemies Absent
17. Game Over Absent
18. Heroes' Counterattack Absent
19. All Might Absent
20. The World of Pros Debut
21. In Each of Our Hearts Absent
Vs. Hero Killer Arc
45. Time to Pick Some Names Absent
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 Absent
59. Listen Up!! A Tale from the Past Absent
Shie Hassaikai Arc
122. A Season for Encounters Appears
123. Unrivaled Absent
124. Trouble Ahead!! Episode: Work Studies Absent
125. Overhaul Absent
126. Open Up, World Absent
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 Absent
131. Fighting Fate Absent
132. The Plan Absent
133. Catch Up, Kirishima Absent
134. Let's Go, Gutsy Red Riot Absent
135. An Unpleasant Talk Absent
136. Close at Hand!! Absent
137. Restraint!! Absent
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
U.A. School Festival Arc
169. School Festival Absent
170. With Eri Absent
171. Gentle and La Brava Absent
172. Prepping for the School Festival Is the Funnest Part (Part 1) Absent
173. Prepping for the School Festival Is the Funnest Part (Part 2) Flashback
174. Golden Tips Imperial Mentioned
175. Morning, the Day Of Appears
176. Deku vs. Gentle Criminal Absent
177. At the Construction Site Absent
178. The Woman Called La Brava Absent
179. School Festival Start!! Appears
180. Unbeknownst Appears
181. For Someone Else Appears
182. Let It Flow! School Festival! Absent
183. Festival All Day Long!! Appears


  • Ryo's surname contains the kanji for "dog" ( inu?) and "well" ( i?), and his first name contains "hunting" ( ryō?).
  • Ryo's English voice actor, Zach Bolton, also voices Sansa Tamakawa and Centipeder.


  1. 1.0 1.1 My Hero Academia Manga: Chapter 122 (p. 2-3).
  2. 2.0 2.1 2.2 2.3 My Hero Academia Manga: Vol. 14, Omake
  3. My Hero Academia: Ultra Analysis: The Official Character Guide.
  4. My Hero Academia Anime: Episode 86.
  5. My Hero Academia Manga and Anime: Chapter 20 and Episode 13.
  6. 6.0 6.1 My Hero Academia Manga: Chapter 122.
  7. My Hero Academia Manga: Chapter 174 (p. 14).
  8. My Hero Academia Manga: Chapter 179 (p. 1).
  9. My Hero Academia Manga: Chapter 180.
  10. My Hero Academia Manga: Chapter 183.

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