"I'm a novice. I can't measure up to their standards! Be that as may... I have to stand up! Never again! Never again will they... or my brother... Leave me behind in the dust!"

Tenya Iida about Izuku, Shoto and his brother in "Re-Ingenium"

Tenya Iida (飯田天哉 Īda Ten'ya?) is is a student of U.A.'s Class 1-A and its class president, and is one of the protagonists of My Hero Academia.


Chapter 12

Tenya's manga profile.

Tenya is tall and muscular. He has black hair and wears rectangular half-rim glasses. His eyes are also somewhat rectangular, as is his jaw. As a result of his Quirk, Tenya's calves are shaped like automobile engines.

Tenya's hero costume consists of a black one-piece suit with a high collar, over which he wears various pieces of armor, including a helmet that covers his entire head, a metal collar around his neck, a breastplate, decorative mufflers extending back from his midriff, and metal vambraces that extend past his elbows. The costume includes specialized metal boots, extending up past his knees, which are specialized for his Quirk.


Tenya may look severe, but he's actually a very straightforward, earnest, intelligent and serious person. He tends to take everything very seriously. Because of this, he has a habit of jumping to conclusions, then enthusiastically speaking or acting based on said conclusions. For example, after assuming that Izuku had figured out the true nature of the Entrance Exam, Tenya acknowledged him as a worthy peer and has since held him in high esteem.

Tenya is shown to be somewhat hyperactive and intense, having some involuntary body tics such as moving his arms around in strange patterns and sometimes twitching his own body uncontrollably. Tenya is extremely dedicated to his studies and always eager to learn new things.

As Class 1-A's representative, Tenya is obsessed with organization and discipline, and expects his classmates to follow suit. At the same time, Tenya takes personal responsibility over the safety of his classmates, considering it his duty as class representative to protect and keep them away from dangerous situations.

Tenya is also a very humble person, willing to admit his mistakes and improve himself in areas he is lacking. This became clear when Tenya admitted that seeking vengeance against Stain was not the way a real hero should act, deciding to leave his damaged left hand unhealed as a reminder of his recklessness and also as a motivation to pursue true heroism. Tenya also values honor and fair play, and will become angered if it turns out that he is being manipulated.

Tenya admires his older brother, Tensei (also known as Turbo Hero Ingenium), and wants to become a hero similar to him. His bond with Tensei is so strong that after Tensei was severely injured by Stain, Tenya sought to avenge his brother by disposing of Stain himself.

Quirk and Abilities

Engine (エンジン Enjin): Tenya's Quirk manifests in the form of engines in his calves, giving him super speed. His engines have multiple gears, allowing him to switch between First, Second, or Third Gear, depending on the situation. Much like a real engine, his Quirk requires that the exhaust pipes on the back of his legs remain clear of obstructions in order to function properly.


  • Recipro Burst (レシプロバースト Reshipuro Bāsuto): This move allows Tenya to forcibly accelerate his Quirk, giving Tenya greatly enhanced speed for 10 seconds at the cost of disabling his engines for a short period of time afterward. Even Shouto Todoroki could not fully evade Recipro Burst and admits that he expected no less of its incredible speed.[1]
  • Recipro Extend (レシプロエクステンド Reshipuro Ekusutendo): After Tenya manages to cool down the negative effects of Recipro Burst, he regains even more acceleration than before.[2]

Leadership Skills: Tenya is a strong leader, as shown when he was able to calm his panicked peers during an evacuation that was turning into a stampede. Tenya became President of Class 1-A after Izuku resigned and gave the position to him, thinking that he was better suited to the job.

4/5 B
5/5 A
3/5 C
4/5 B
3/5 C
Tenya's stats, according to the Official Character Book


Hero Costume: Tenya's hero costume is an armored suit that supposedly decreases wind resistance but is actually mostly for decoration. Contrary to the appearance, his armor is lightweight.

  • Ingenium Boots: The boots contain cooling devices and other mechanisms that augment the performance of his engines. As a result, his running distance is greatly extended.
  • Ingenium Helmet: The helmet reduces wind resistance.
  • Ingenium Muffler: The muffler is for decoration.[3]




Tenya Iida's preliminary design.

  • During the preliminary stages of the series, Tenya was extremely different from his final and current design. Most notably, the original concept featured a helmet with the shape of a dinosaur head.
  • Tenya is student No. 4 in Class 1-A.
  • Tenya ranked 6th during the Entrance Exam and 4th during the Quirk Apprehension Test.
  • If he had stayed for the closing ceremony of U.A.'s Sports Festival, Tenya would have received 3rd place.
  • Tenya's rankings in the Popularity Polls are as follows:
    • Tenya ranked 8th in the First Popularity Poll.
    • Tenya ranked 8th in the Second Popularity Poll.
  • Tenya likes studying.
    • Tenya's favorite food is beef stew.
  • Tenya's name comes from "韋駄天" (idaten?), meaning "great runner". "哉" (ya?) is a final exclamatory particle.
  • Tenya ranks 2nd in Class 1-A's Grades.[4]
  • Tenya's hero outfit strongly resembles Incursio from Akame ga Kill.
  • Tenya ranked in the Top 4 of the U.A. Sports Festival First-Year Stage.


  • (To himself, in regards to Izuku Midoriya, Shoto Todoroki, and Tensei Iida) "I'm a novice. I can't measure up to their standards! Be that as may... I have to stand up! Never again! Never again will they... or my brother... leave me behind in the dust!"[5]


  1. My Hero Academia Manga: Chapter 29, Pages 14-17
  2. My Hero Academia Manga: Chapter 54, Page 17
  3. My Hero Academia Manga: Volume 7 Omake
  4. My Hero Academia Manga: Chapter 60
  5. My Hero Academia Manga: Chapter 54, Pages 5 & 7-8

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